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  • 1
    Unbekannt
    Bonn : Galileo Press
    Schlagwort(e): Joomla! ; Joomla! 1.5 ; CMS ; Content Management System
    Beschreibung / Inhaltsverzeichnis: Joomla! ist ein populäres Open-Source-CMS, das durch seine leichte Zugänglichkeit, Leistungsfähigkeit und Flexibilität besticht. Es basiert auf PHP und MySQL und kann daher auf verschiedensten Serverumgebungen eingesetzt werden. Der Versionssprung von 1.0 auf 1.5 macht es deutlich: umfangreiche Änderungen, wie z. B. die grundlegende Überarbeitung des Joomla!-Frameworks, Datenbankabstraktion und verbesserte Caching-Verfahren machen Joomla! 1.5 noch funktionsreicher, performanter und sicherer. Das Buch bietet eine umfassende Einführung in Installation, Funktionsumfang und Betrieb von Joomla! 1.5. Darüber hinaus werden auch professionelle Themen wie Websitemigration, Entwicklung von Erweiterungen und Datensicherung detailliert dargestellt.
    Seiten: Online-Ressource (820 Seiten)
    Ausgabe: 2., akt. und erw. Aufl.
    ISBN: 9783898428811
    Sprache: Deutsch
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Unbekannt
    Bonn : Galileo Press
    Schlagwort(e): C ; ANSI C
    Beschreibung / Inhaltsverzeichnis: Hier bekommen Sie C-Wissen pur. Egal, ob Sie gerade anfangen, C zu lernen oder ein kompetentes Nachschlagewerk für Fragen rund um C benötigen, mit diesem Buch sind Sie bestens beraten. Ausführlich werden die Grundlagen von C dargestellt, angefangen von den elementaren Datentypen bis hin zu Arrays, Zeigern und dynamischer Speicherverwaltung. Auch fortgeschrittene Themen wie das Programmieren von Webanwendungen mit der CGI-Schnittstelle und eigenen Datenbank-Clients mit der C-API von MySQL, Netzwerk- und Cross-Plattform-Entwicklung kommen nicht zu kurz.
    Seiten: Online-Ressource (1190 Seiten)
    Ausgabe: 3., akt. und erw. Aufl.
    ISBN: 9783836214117
    Sprache: Deutsch
    Standort Signatur Erwartet Verfügbarkeit
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  • 3
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Text processing (Computer science) ; Image processing ; Computer Science ; Image Processing and Computer Vision ; Document Preparation and Text Processing
    Beschreibung / Inhaltsverzeichnis: Computer Vision Metrics provides an extensive survey and analysis of over 100 current and historical feature description and machine vision methods, with a detailed taxonomy for local, regional and global features. This book provides necessary background to develop intuition about why interest point detectors and feature descriptors actually work, how they are designed, with observations about tuning the methods for achieving robustness and invariance targets for specific applications. The survey is broader than it is deep, with over 540 references provided to dig deeper. The taxonomy includes search methods, spectra components, descriptor representation, shape, distance functions, accuracy, efficiency, robustness and invariance attributes, and more. Rather than providing ‘how-to’ source code examples and shortcuts, this book provides a counterpoint discussion to the many fine opencv community source code resources available for hands-on practitioners
    Seiten: Online-Ressource (XXXI, 508 pages) , 216 illustrations
    ISBN: 9781430259305
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 4
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Computer Science ; Computer Science, general
    Beschreibung / Inhaltsverzeichnis: Learn how to leverage the BlackBerry 10 Cascades framework to create rich native applications. Learn BlackBerry 10 App Development gives you a solid foundation for creating BlackBerry 10 apps efficiently. Along the way, you will learn how to use QML and JavaScript for designing your app’s UI, and C++/Qt for the application logic. No prior knowledge of C++ is assumed and the book covers the fundamental aspects of the language for writing BlackBerry 10 apps. Also a particular emphasis is put on how to create a visually enticing user experience with the Cascades framework, which is based on Qt and QML. Starting with the native SDK configuration and an overview of the Momentics IDE, the book is fast-paced and you will rapidly learn many of the best practices and techniques required for developing beautiful BlackBerry 10 apps. Learn BlackBerry 10 App Development is written for developers wishing to learn how to write apps for the new BlackBerry 10 OS and those interested in porting existing iOS and Android apps to BlackBerry 10 as native applications
    Seiten: Online-Ressource (XVI, 356 pages) , 104 illustrations
    ISBN: 9781430261582
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 5
    Schlagwort(e): Computer science ; Computer Science ; Computer Science, general
    Beschreibung / Inhaltsverzeichnis: Intel® Galileo and Intel® Galileo Gen 2: API Features and Arduino Projects for Linux Programmers provides detailed information about Intel® Galileo and Intel® Galileo Gen 2 boards for all software developers interested in Arduino and the Linux platform. The book covers the new Arduino APIs and is an introduction for developers on natively using Linux. Author Manoel Carlos Ramon is a member of the Intel Galileo development team; in this book he draws on his practical experience in working on the Galileo project as he shares the team’s findings, problems, fixes, workarounds, and techniques with the open source community. His areas of expertise are wide-ranging, including Linux-embedded kernel and device drivers, C/C++, Java, OpenGL, Assembler, Android NDK/SDK/ADK, and 2G/3G/4G modem integration. He has more than 17 years of experience in research and development of mobile devices and embedded circuits. His personal blog about programming is BytesThink (www.bytesthink.com)
    Seiten: Online-Ressource (XXII, 680 pages) , 256 illustrations
    ISBN: 9781430268383
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 6
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Computer security ; Data encryption (Computer science) ; Computer Science ; Systems and Data Security ; Data Encryption
    Beschreibung / Inhaltsverzeichnis: For cloud users and providers alike, security is an everyday concern, yet there are very few books covering cloud security as a main subject. This book will help address this information gap from an Information Technology solution and usage-centric view of cloud infrastructure security. The book highlights the fundamental technology components necessary to build and enable trusted clouds. Here also is an explanation of the security and compliance challenges organizations face as they migrate mission-critical applications to the cloud, and how trusted clouds, that have their integrity rooted in hardware, can address these challenges. This book provides: Use cases and solution reference architectures to enable infrastructure integrity and the creation of trusted pools leveraging Intel Trusted Execution Technology (TXT). Trusted geo-location management in the cloud, enabling workload and data location compliance and boundary control usages in the cloud. OpenStack-based reference architecture of tenant-controlled virtual machine and workload protection in the cloud. A reference design to enable secure hybrid clouds for a cloud bursting use case, providing infrastructure visibility and control to organizations. "A valuable guide to the next generation of cloud security and hardware based root of trust. More than an explanation of the what and how, is the explanation of why. And why you can’t afford to ignore it!" —Vince Lubsey, Vice President, Product Development, Virtustream Inc. " Raghu provides a valuable reference for the new 'inside out' approach, where trust in hardware, software, and privileged users is never assumed—but instead measured, attested, and limited according to least privilege principles." —John Skinner, Vice President, HyTrust Inc. "Traditional parameter based defenses are in sufficient in the cloud. Raghu's book addresses this problem head-on by highlighting unique usage models to enable trusted infrastructure in this open environment. A must read if you are exposed in cloud." —Nikhil Sharma, Sr. Director of Cloud Solutions, Office of CTO, EMC Corporation
    Seiten: Online-Ressource (XXVI, 244 pages) , 95 illustrations
    ISBN: 9781430261469
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 7
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Data encryption (Computer science) ; Computers ; Computer Science ; Data Encryption ; Information Systems and Communication Service
    Beschreibung / Inhaltsverzeichnis: The InfoSec Handbook offers the reader an organized layout of information that is easily read and understood. Allowing beginners to enter the field and understand the key concepts and ideas, while still keeping the experienced readers updated on topics and concepts. It is intended mainly for beginners to the field of information security, written in a way that makes it easy for them to understand the detailed content of the book. The book offers a practical and simple view of the security practices while still offering somewhat technical and detailed information relating to security. It helps the reader build a strong foundation of information, allowing them to move forward from the book with a larger knowledge base. Security is a constantly growing concern that everyone must deal with. Whether it’s an average computer user or a highly skilled computer user, they are always confronted with different security risks. These risks range in danger and should always be dealt with accordingly. Unfortunately, not everyone is aware of the dangers or how to prevent them and this is where most of the issues arise in information technology (IT). When computer users do not take security into account many issues can arise from that like system compromises or loss of data and information. This is an obvious issue that is present with all computer users. This book is intended to educate the average and experienced user of what kinds of different security practices and standards exist. It will also cover how to manage security software and updates in order to be as protected as possible from all of the threats that they face
    Seiten: Online-Ressource (XXIV, 392 pages) , 303 illustrations
    ISBN: 9781430263838
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 8
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Software engineering ; Data encryption (Computer science) ; Computer Science ; Data Encryption ; Software Engineering/Programming and Operating Systems
    Beschreibung / Inhaltsverzeichnis: Platform Embedded Security Technology Revealed is an in-depth introduction to Intel’s platform embedded solution: the security and management engine. The engine is shipped inside most Intel platforms for servers, personal computers, tablets, and smartphones. The engine realizes advanced security and management functionalities and protects applications’ secrets and users’ privacy in a secure, light-weight, and inexpensive way. Besides native built-in features, it allows third-party software vendors to develop applications that take advantage of the security infrastructures offered by the engine. Intel’s security and management engine is technologically unique and significant, but is largely unknown to many members of the tech communities who could potentially benefit from it. Platform Embedded Security Technology Revealed reveals technical details of the engine. The engine provides a new way for the computer security industry to resolve critical problems resulting from booming mobile technologies, such as increasing threats against confidentiality and privacy. This book describes how this advanced level of protection is made possible by the engine, how it can improve users’ security experience, and how third-party vendors can make use of it. It's written for computer security professionals and researchers; embedded system engineers; and software engineers and vendors who are interested in developing new security applications on top of Intel’s security and management engine. It’s also written for advanced users who are interested in understanding how the security features of Intel’s platforms work
    Seiten: Online-Ressource (XX, 272 pages) , 74 illustrations
    ISBN: 9781430265726
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 9
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Open source software ; Computer programming ; Software engineering ; Open Source ; Software Engineering/Programming and Operating Systems
    Beschreibung / Inhaltsverzeichnis: Pro Git (Second Edition) is your fully-updated guide to Git and its usage in the modern world. Git has come a long way since it was first developed by Linus Torvalds for Linux kernel development. It has taken the open source world by storm since its inception in 2005, and this book teaches you how to use it like a pro. Effective and well-implemented version control is a necessity for successful web projects, whether large or small. With this book you’ll learn how to master the world of distributed version workflow, use the distributed features of Git to the full, and extend Git to meet your every need. Written by Git pros Scott Chacon and Ben Straub, Pro Git (Second Edition) builds on the hugely successful first edition, and is now fully updated for Git version 2.0, as well as including an indispensable chapter on GitHub. It’s the best book for all your Git needs
    Seiten: Online-Ressource (XXI, 456 pages) , 208 illustrations
    Ausgabe: 2nd edition
    ISBN: 9781484200766
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 10
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Computer programming ; Computer Science ; Programming Techniques
    Beschreibung / Inhaltsverzeichnis: The number of Android devices running on Intel processors has increased since Intel and Google announced, in late 2011, that they would be working together to optimize future versions of Android for Intel Atom processors. Today, Intel processors can be found in Android smartphones and tablets made by some of the top manufacturers of Android devices, such as Samsung, Lenovo, and Asus. The increase in Android devices featuring Intel processors has created a demand for Android applications optimized for Intel Architecture: Android Application Development for the Intel® Platform is the perfect introduction for software engineers and mobile app developers. Through well-designed app samples, code samples and case studies, the book teaches Android application development based on the Intel platform—including for smartphones, tablets, and embedded devices—covering performance tuning, debugging and optimization. This book is jointly developed for individual learning by Intel Software College and China Shanghai JiaoTong University
    Seiten: Online-Ressource (XX, 520 pages) , 278 illustrations
    ISBN: 9781484201008
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 11
    Schlagwort(e): Computer science ; Multimedia information systems ; Computer Science ; Computer Science, general ; Multimedia Information Systems
    Beschreibung / Inhaltsverzeichnis: Digital Video Concepts, Methods, and Metrics: Quality, Compression, Performance, and Power Trade-off Analysis is a concise reference for professionals in a wide range of applications and vocations. It focuses on giving the reader mastery over the concepts, methods and metrics of digital video coding, so that readers have sufficient understanding to choose and tune coding parameters for optimum results that would suit their particular needs for quality, compression, speed and power. The practical aspects are many: Uploading video to the Internet is only the beginning of a trend where a consumer controls video quality and speed by trading off various other factors. Open source and proprietary applications such as video e-mail, private party content generation, editing and archiving, and cloud asset management would give further control to the end-user. Digital video is frequently compressed and coded for easier storage and transmission. This process involves visual quality loss due to typical data compression techniques and requires use of high performance computing systems. A careful balance between the amount of compression, the visual quality loss and the coding speed is necessary to keep the total system cost down, while delivering a good user experience for various video applications. At the same time, power consumption optimizations are also essential to get the job done on inexpensive consumer platforms. Trade-offs can be made among these factors, and relevant considerations are particularly important in resource-constrained low power devices. To better understand the trade-offs this book discusses a comprehensive set of engineering principles, strategies, methods and metrics. It also exposes readers to approaches on how to differentiate and rank video coding solutions
    Seiten: Online-Ressource (XVII, 368 pages) , 115 illustrations
    ISBN: 9781430267133
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 12
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Computer Science ; Computer Science, general
    Beschreibung / Inhaltsverzeichnis: Optimizing HPC Applications with Intel® Cluster Tools takes the reader on a tour of the fast-growing area of high performance computing and the optimization of hybrid programs. These programs typically combine distributed memory and shared memory programming models and use the Message Passing Interface (MPI) and OpenMP for multi-threading to achieve the ultimate goal of high performance at low power consumption on enterprise-class workstations and compute clusters. The book focuses on optimization for clusters consisting of the Intel® Xeon processor, but the optimization methodologies also apply to the Intel® Xeon Phi™ coprocessor and heterogeneous clusters mixing both architectures. Besides the tutorial and reference content, the authors address and refute many myths and misconceptions surrounding the topic. The text is augmented and enriched by descriptions of real-life situations
    Seiten: Online-Ressource (XXIV, 300 pages) , 74 illustrations
    ISBN: 9781430264972
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 13
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Software engineering ; Data encryption (Computer science) ; Computer Science ; Software Engineering/Programming and Operating Systems ; Data Encryption
    Beschreibung / Inhaltsverzeichnis: It's our thesis that privacy will be an integral part of the next wave in the technology revolution and that innovators who are emphasizing privacy as an integral part of the product life cycle are on the right track. --The authors of The Privacy Engineer's Manifesto The Privacy Engineer's Manifesto: Getting from Policy to Code to QA to Value is the first book of its kind, offering industry-proven solutions that go beyond mere theory and adding lucid perspectives on the challenges and opportunities raised with the emerging "personal" information economy. The authors, a uniquely skilled team of longtime industry experts, detail how you can build privacy into products, processes, applications, and systems. The book offers insight on translating the guiding light of OECD Privacy Guidelines, the Fair Information Practice Principles (FIPPs), Generally Accepted Privacy Principles (GAPP) and Privacy by Design (PbD) into concrete concepts that organizations, software/hardware engineers, and system administrators/owners can understand and apply throughout the product or process life cycle—regardless of development methodology—from inception to retirement, including data deletion and destruction. In addition to providing practical methods to applying privacy engineering methodologies, the authors detail how to prepare and organize an enterprise or organization to support and manage products, process, systems, and applications that require personal information. The authors also address how to think about and assign value to the personal information assets being protected. Finally, the team of experts offers thoughts about the information revolution that has only just begun, and how we can live in a world of sensors and trillions of data points without losing our ethics or value(s)...and even have a little fun. The Privacy Engineer's Manifesto is designed to serve multiple stakeholders: Anyone who is involved in designing, developing, deploying and reviewing products, processes, applications, and systems that process personal information, including software/hardware engineers, technical program and product managers, support and sales engineers, system integrators, IT professionals, lawyers, and information privacy and security professionals. This book is a must-read for all practitioners in the personal information economy. Privacy will be an integral part of the next wave in the technology revolution; innovators who emphasize privacy as an integral part of the product life cycle are on the right track. Foreword by Dr. Eric Bonabeau, PhD, Chairman, Icosystem, Inc. & Dean of Computational Sciences, Minerva Schools at KGI
    Seiten: Online-Ressource (XXXVI, 400 pages) , 104 illustrations
    ISBN: 9781430263562
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 14
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Software engineering ; User interfaces (Computer systems) ; Computer Science ; User Interfaces and Human Computer Interaction ; Software Engineering/Programming and Operating Systems
    Beschreibung / Inhaltsverzeichnis: GUI Design for Android Apps is the perfect—and concise—introduction for mobile app developers and designers. Through easy-to-follow tutorials, code samples, and case studies, the book shows the must-know principles for user-interface design for Android apps running on the Intel platform, including smartphones, tablets and embedded devices. This book is jointly developed for individual learning by Intel Software College and China Shanghai JiaoTong University, and is excerpted from Android Application Development for the Intel® Platform
    Seiten: Online-Ressource (XI, 156 pages) , 65 illustrations
    ISBN: 9781484203828
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 15
    Schlagwort(e): Adobe Photoshop CS4
    Beschreibung / Inhaltsverzeichnis: Sie setzen Adobe Photoshop CS4 oder Photoshop CS4 Extended professionell ein und müssen täglich unterschiedlichste Aufgabenstellungen lösen? Dann sind Sie sicher immer auf der Suche nach effizienten Problemlösungen, offen für neue Ideen und wollen auf dem neuesten Stand der (Photoshop-)Technik bleiben. Dieses Buch hilft Ihnen, über den Tellerrand zu schauen und vom fortgeschrittenen Anwender zum Photoshop-Profi zu werden. Lernen Sie, Probleme bei Digitalfotos zu beheben: Rauschen, Moiré, Unschärfe, Pixelfehler, Optische Verzerrungen. Trauen Sie sich, neue Wege zu gehen beim Einsatz altbekannter Funktionen wie Freistelltechniken, Masken, Kanälen und dem LAB-Modus -- oder setzen Sie gezielt alternative Programme von Drittanbietern ein. Dabei zeigt das Buch Strategien für die Anwendungsbereiche Fotobearbeitung, Videobearbeitung, Druckvorstufe, Web und 3D. Themen sind u.a. Camera Raw, HDR, Panoramen, Compositings & Montagen, Farb- und Tonwertkorrekturen, Farbmanagement, Sonderfarben, Filter, Animation, Workflow mit Dreamweaver, Fireworks und CS4-Videoprogrammen. Für die Beschleunigung Ihrer Arbeit gibt es außerdem Tipps zur Automatisierung, zum Scripten mit Photoshop und Flex, zum Teamwork und zur Versionierung. So schöpfen Sie das Potenzial von Photoshop CS4 wirklich aus!
    Seiten: Online-Ressource (843 Seiten)
    Ausgabe: 1. Aufl.
    ISBN: 9783836212373
    Sprache: Deutsch
    Standort Signatur Erwartet Verfügbarkeit
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  • 16
    Schlagwort(e): Computer science ; Computers ; Database management ; Artificial intelligence ; Computer Science ; Database Management ; Artificial Intelligence (incl. Robotics) ; Information Systems and Communication Service
    Beschreibung / Inhaltsverzeichnis: Introduction to LOD2, Sören Auer --- Advances in Large-scale RDF Data --- Knowledge Base Creation, Enrichment and Repair --- Interlinking and Knowledge Fusion --- Facilitating the Exploration and Visualization of Linked Data --- Supporting the Linked Data life cycle using an integrated tool stack --- LOD2 for Media and Publishing --- Building Enterprise Ready Applications Using Linked Open Data --- Lifting Open Data Portals to the Data Web --- Linked Open Data for Public Procurement
    Seiten: Online-Ressource (VII, 215 pages) , 73 illustrations
    ISBN: 9783319098463
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 17
    Schlagwort(e): 3D Surface Reconstruction - Bildanalyse - Bildverarbeitung - Bildverarbeitungsanwenungen - Closing - Computer Vision ; Mustererkennung ; Triangulation ; digital elevation model ; genetic algorithms ; hidden Markov Model ; image analysis ; model ; rendering ; robot
    Beschreibung / Inhaltsverzeichnis: This book presents the proceedings of the Sixth International Conference on Computer Analysis of Images and Patterns, CAIP '95, held in Prague, Czech Republic in September 1995. The volume presents 61 full papers and 75 posters selected from a total of 262 submissions and thus gives a comprehensive view on the state-of-the-art in computer analysis of images and patterns, research, design, and advanced applications. The papers are organized in sections on invariants, segmentation and grouping, optical flow, model recovery and parameter estimation, low level vision, motion detection, structure and matching, active vision and shading, human face recognition, calibration, contour, and sessions on applications in diverse areas.
    Seiten: Online-Ressource (XVIII, 962 pages)
    ISBN: 9783540447818
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 18
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Data encryption (Computer science) ; Computers ; Computer Science ; Data Encryption ; Information Systems and Communication Service
    Beschreibung / Inhaltsverzeichnis: The InfoSec Handbook offers the reader an organized layout of information that is easily read and understood. Allowing beginners to enter the field and understand the key concepts and ideas, while still keeping the experienced readers updated on topics and concepts. It is intended mainly for beginners to the field of information security, written in a way that makes it easy for them to understand the detailed content of the book. The book offers a practical and simple view of the security practices while still offering somewhat technical and detailed information relating to security. It helps the reader build a strong foundation of information, allowing them to move forward from the book with a larger knowledge base. Security is a constantly growing concern that everyone must deal with. Whether it’s an average computer user or a highly skilled computer user, they are always confronted with different security risks. These risks range in danger and should always be dealt with accordingly. Unfortunately, not everyone is aware of the dangers or how to prevent them and this is where most of the issues arise in information technology (IT). When computer users do not take security into account many issues can arise from that like system compromises or loss of data and information. This is an obvious issue that is present with all computer users. This book is intended to educate the average and experienced user of what kinds of different security practices and standards exist. It will also cover how to manage security software and updates in order to be as protected as possible from all of the threats that they face
    Seiten: Online-Ressource (XXIV, 392 pages) , 303 illustrations
    ISBN: 9781430263838
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 19
    Unbekannt
    Bonn : Galileo Press
    Schlagwort(e): Visual Basic ; Visual Basic 2008 ; Visual Studio ; Objektorientierte Programmierung ; OOP
    Beschreibung / Inhaltsverzeichnis: Wer Anwendungen mit Visual Basic 2008 programmieren will, findet in diesem Buch alles, was er dafür braucht. Neben dem Framework und der Entwicklungsumgebung Visual Studio sowie der Sprachsyntax von Visual Basic wird ausführlich auf die objektorientierte Programmierung eingegangen. Häufig verwendete Programmiertechniken werden ebenso gezeigt wie die Entwicklung grafischer Oberflächen mit WinForms und WPF sowie die Datenbankanbindung mit ADO.Net. Das Buch enthält alle Neuerungen des Visual Studio 2008. So werden die Themen LINQ (Language Integrated Query, ganz neu in .NET 3.5) oder etwa XAML (eXtensible Application Markup Language) sehr ausführlich in eigenen neuen Kapiteln behandelt.
    Seiten: Online-Ressource (1323 Seiten)
    Ausgabe: 3., akt. und erw. Aufl.
    ISBN: 9783836211710
    Sprache: Deutsch
    Standort Signatur Erwartet Verfügbarkeit
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  • 20
    Unbekannt
    Amsterdam ; New York : Elsevier
    Schlagwort(e): DDC 512/.72 ; LC QA242 ; Algebras, Linear ; Euclidean algorithm ; Orthogonal polynomials ; Pade´ approximant
    Seiten: Online-Ressource (xvii, 446 pages)
    ISBN: 9780444828729
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 21
    Unbekannt
    London : Ubiquity Press
    Schlagwort(e): Open Data ; Open Science ; Open Access ; Text Mining ; Data Mining
    Beschreibung / Inhaltsverzeichnis: In 2010 the Panton Principles for Open Data in Science were published. These principles were founded upon the idea that "Science is based on building on, reusing and openly criticising the published body of scientific knowledge" (http://pantonprinciples.org) and they provide a succinct list of the fundamentals to observe when making your data open. Intended for a broad audience of academics, publishers and librarians, Issues in Research Data explores the implications of the Panton Principles through a number of perspectives on open research data in the sciences and beyond. The book features chapters by open data experts in a range of academic disciplines, covering practical information on licensing, ethics, and advice for data curators, alongside more theoretical issues surrounding the adoption of open data. As the book is open access, each chapter can stand alone from the main volume so that communities can host, distribute, build upon and remix the content that is relevant to them. Readers can access the online version via the QR code or DOI link at the front of the book.
    Seiten: Online-Ressource (VI, 164 Seiten)
    ISBN: 9781909188327
    Sprache: Englisch
    Standort Signatur Erwartet Verfügbarkeit
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  • 22
    Unbekannt
    Bonn : Galileo Press
    Schlagwort(e): Objektorientierte Programmierung ; OOP ; C++ ; Java ; Ruby ; C# ; Aspektorientierung
    Beschreibung / Inhaltsverzeichnis: In diesem Buch finden Sie alles, was Sie brauchen, um sich in die objektorientierte Programmierung einzuarbeiten. Die beiden Autoren erläutern alle Prinzipien und ihre Umsetzung anschaulich und verständlich anhand einer Vielzahl typischer Beispiele. Als Sprachen werden C++, Java, Ruby, C# und PHP eingesetzt. Anhand eines größeren Projekts bekommen Sie zudem einmal von Anfang bis Ende gezeigt, wie Sie OOP konsequent realisieren können. Des Weiteren bietet das Buch eine Einführung in die aspektorientierte Programmierung.
    Seiten: Online-Ressource (656 Seiten)
    Ausgabe: 2., akt. und erw. Aufl.
    ISBN: 9783836214018
    Sprache: Deutsch
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  • 23
    Unbekannt
    Amsterdam ; New York : Elsevier Science
    Schlagwort(e): DDC 512.9/42 ; LC QA214 ; Equations, Simultaneous - Numerical solutions ; Iterative methods (Mathematics)
    Seiten: Online-Ressource (vii, 400 pages)
    ISBN: 9780444827777
    Sprache: Englisch
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  • 24
    Unbekannt
    Bonn : Galileo Press
    Schlagwort(e): Windows Server 2012 R2 ; Hyper-V ; Active Directory ; Remotedesktopdienste ; Webserver IIS ; Netzwerkprotokolle ; Kerberos-Authentifizierung
    Beschreibung / Inhaltsverzeichnis: Das lösungsorientierte und umfassende Buch zum Windows Server 2012 R2 mit zahlreichen fundierten Hintergrundinformationen. Der Autor Ulrich B. Boddenberg greift bei der Beschreibung des Servers auf seine praktischen Erfahrungen in zahlreichen Projekten bei mittleren und großen Kunden zurück. Denn ein modernes Betriebssystem wie Windows Server 2012 R2 bietet weit mehr als nur die Möglichkeit, Programme auszuführen. Er beschreibt alle zentralen Technologien wie die Virtualisierung mit Hyper-V V3, Active Directory, Remotedesktopdienste, den Webserver IIS sowie SharePoint. Neben diesen konkreten Technologien geht es auch um Grundlagen wie Netzwerkprotokolle, Kerberos-Authentifizierung oder die eingesetzte Hardware. Zentrale Aspekte wie Performance, Verfügbarkeit und Sicherheit ziehen sich durch das gesamte Buch.
    Seiten: Online-Ressource (1392 Seiten)
    Ausgabe: 4., akt. Aufl.
    ISBN: 9783836220132
    Sprache: Deutsch
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  • 25
    Unbekannt
    Berkeley, CA : Apress
    Schlagwort(e): Computer science ; Computer security ; Data encryption (Computer science) ; Computer Science ; Systems and Data Security ; Data Encryption
    Beschreibung / Inhaltsverzeichnis: For cloud users and providers alike, security is an everyday concern, yet there are very few books covering cloud security as a main subject. This book will help address this information gap from an Information Technology solution and usage-centric view of cloud infrastructure security. The book highlights the fundamental technology components necessary to build and enable trusted clouds. Here also is an explanation of the security and compliance challenges organizations face as they migrate mission-critical applications to the cloud, and how trusted clouds, that have their integrity rooted in hardware, can address these challenges. This book provides: Use cases and solution reference architectures to enable infrastructure integrity and the creation of trusted pools leveraging Intel Trusted Execution Technology (TXT). Trusted geo-location management in the cloud, enabling workload and data location compliance and boundary control usages in the cloud. OpenStack-based reference architecture of tenant-controlled virtual machine and workload protection in the cloud. A reference design to enable secure hybrid clouds for a cloud bursting use case, providing infrastructure visibility and control to organizations. "A valuable guide to the next generation of cloud security and hardware based root of trust. More than an explanation of the what and how, is the explanation of why. And why you can’t afford to ignore it!" —Vince Lubsey, Vice President, Product Development, Virtustream Inc. " Raghu provides a valuable reference for the new 'inside out' approach, where trust in hardware, software, and privileged users is never assumed—but instead measured, attested, and limited according to least privilege principles." —John Skinner, Vice President, HyTrust Inc. "Traditional parameter based defenses are in sufficient in the cloud. Raghu's book addresses this problem head-on by highlighting unique usage models to enable trusted infrastructure in this open environment. A must read if you are exposed in cloud." —Nikhil Sharma, Sr. Director of Cloud Solutions, Office of CTO, EMC Corporation
    Seiten: Online-Ressource (XXVI, 244 pages) , 95 illustrations
    ISBN: 9781430261469
    Sprache: Englisch
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  • 26
    Unbekannt
    Beijing : O'Reilly
    Schlagwort(e): data science
    Beschreibung / Inhaltsverzeichnis: Chapter 1 Introduction --- Overview --- Data Science Is OSEMN --- Intermezzo Chapters --- What Is the Command Line? --- Why Data Science at the Command Line? --- A Real-World Use Case --- Further Reading --- Chapter 2 Getting Started --- Overview --- Setting Up Your Data Science Toolbox --- Essential Concepts and Tools --- Further Reading --- Chapter 3 Obtaining Data --- Overview --- Copying Local Files to the Data Science Toolbox --- Decompressing Files --- Converting Microsoft Excel Spreadsheets --- Querying Relational Databases --- Downloading from the Internet --- Calling Web APIs --- Further Reading --- Chapter 4 Creating Reusable Command-Line Tools --- Overview --- Converting One-Liners into Shell Scripts --- Creating Command-Line Tools with Python and R --- Further Reading --- Chapter 5 Scrubbing Data --- Overview --- Common Scrub Operations for Plain Text --- Working with CSV --- Working with HTML/XML and JSON --- Common Scrub Operations for CSV --- Further Reading --- Chapter 6 Managing Your Data Workflow --- Overview --- Introducing Drake --- Installing Drake --- Obtain Top Ebooks from Project Gutenberg --- Every Workflow Starts with a Single Step --- Well, That Depends --- Rebuilding Specific Targets --- Discussion --- Further Reading --- Chapter 7 Exploring Data --- Overview --- Inspecting Data and Its Properties --- Computing Descriptive Statistics --- Creating Visualizations --- Further Reading --- Chapter 8 Parallel Pipelines --- Overview --- Serial Processing --- Parallel Processing --- Distributed Processing --- Discussion --- Further Reading --- Chapter 9 Modeling Data --- Overview --- More Wine, Please! --- Dimensionality Reduction with Tapkee --- Clustering with Weka --- Regression with SciKit-Learn Laboratory --- Classification with BigML --- Further Reading --- Chapter 10 Conclusion --- Let’s Recap --- Three Pieces of Advice --- Where to Go from Here? --- Getting in Touch
    Seiten: Online-Ressource (XVII, 191 pages) , illustrations, diagrams
    ISBN: 9781491947852
    Sprache: Englisch
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  • 27
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: Berthing ships at a port and unloading the stowed materials require a series of scheduling problems: ship berthing, discharging, and material transport. To deal effectively with the scheduling complexity due to mutual interdependence among those problems, this paper proposes a two-level hierarchical architecture for the integrated scheduling of all the activities arising in port. The hierarchical architecture assigns ships to multiple lower level dispatchers, each of which makes its own discharging and material transport schedule independently while satisfying the requirements imposed by the higher level coordinator. If any problem occurs within a dispatcher, the higher level coordinator attempts to resolve the trouble through the coordination of other dispatchers. Based on the hierarchical architecture, a prototype scheduling expert system is developed using G2 for the port scheduling problem at a steelworks. Through the object- oriented interaction of frames, the system is shown to effectively construct integrated schedules from the berth scheduling to the material transport scheduling.
    Materialart: Digitale Medien
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  • 28
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: Creating and sustaining a competitive advantage in today’s turbulent world markets is a formidable business challenge. For many organisations, operating within an inherently unstable external environment has resulted in the need for a cultural rethink. Business complacency, brought about by corporate industry monopolisation, the reliance on reputation, brand identity, and customer allegiance, is no longer a recipe for sustained market growth. Companies have realised that being market focused could provide them with a competitive edge within the marketplace. To achieve this organisations have turned to the ‘Quality movement’, embracing the Total Quality Management (TQM) philosophy and its inherent tools (auditing frameworks, concept of quality systems etc.) as a means to recapture lost ground. ESAS (Enterprise Strategic Advisory System) is a prototype intelligent system that utilises a case- based approach to address the issues raised above, by providing organisations with advice on market- led quality and competitive strategy. This paper explores the philosophy and ideas behind the ESAS concept, and describes the development of an ESAS prototype.
    Materialart: Digitale Medien
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  • 29
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 30
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Gillies, Donald, Artificial Intelligence and Scientific MethodGurney, Kevin, An Introduction to Neural Networks
    Materialart: Digitale Medien
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  • 31
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Computer-based training is an area where knowledge-based techniques enable us to achieve new system functionalities which cannot be attained with conventional techniques. Knowledge-based training systems can adapt the course, the lesson and the instructional strategy to the needs and attitude of the individual trainee, so as to obtain a completely individualised instruction. Due to these capabilities they are known as Intelligent Training Systems (ITSs). After their introduction in the mid-eighties with their first successful application in the military sector, ITSs are now mature enough for practical use in civil applications.This paper presents the experience gained by the authors over the last decade through the realisation of two industrial prototypes in different sectors and the recent development of a full-scale application. Such experience led to a specification methodology and to a development framework which now provide a solid baseline for the industrial application of the ITS technology.
    Materialart: Digitale Medien
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  • 32
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Constraint satisfaction and search problems generally fall into the class of problems for which a direct algorithmic solution does not exist. The solution of these problems requires the examination of state spaces. A problem solver (inference engine) alone is not able to organize and maintain state space consistently. For this purpose a so-called truth maintenance system is required. Our truth maintenance system (MEKON) organizes data within a data abstraction called a context. Each context corresponds to one problem state and contains currently believed data. The truth maintenance system provides believed data retrieval, belief revision, contradiction handling and non-monotonicity handling, the features that help a problem solver to examine state spaces. MEKON represents an ATMS-like system implemented within BEST (Blackboard-based Expert System Toolkit). However, some special MEKON features such as state variables, context sensitive generation of assumptions and explicit context generation, that are not present in standard ATMSs, facilitate not only the solution of constraint satisfaction problems, but also the solution of search problems (not provided by standard ATMSs). Being deeply integrated with Prolog/Rex, BEST’s knowledge representation language, and BEST’s inference engine, MEKON provides a simple and efficient means for the examination of state spaces. Facts, hypotheses (assumptions), and concepts (frames) are used to describe a problem state, contexts are used to represent points in the state spaces, while rules are used to perform state transitions. MEKON is the only truth maintenacne system that provides truth maintenance capabilities on local blackboards thus enabling the solution of complex problems which include different kinds of real constraint satisfaction and search problems concerning diagnosis, allocation tasks, classification tasks, planning or scenario making.
    Materialart: Digitale Medien
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  • 33
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 14 (1997), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Russell, Stuart and Norvig, Peter Artificial Intelligence: A Modern ApproachEdwards, Alistair, D.N. (ed.) Extra-Ordinary Human-Computer Interaction: Interfaces for Users with DisabilitiesVacca, John R. VRML: Bringing Virtual Reality to the Internet
    Materialart: Digitale Medien
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  • 34
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 14 (1997), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: The blackboard architecture, originally developed for the system that permits the comprehension of language, HEARSAY II, has later been used in a great variety of domains and in various environments for the construction of systems. From the classic architecture of HEARSAY II, many applications, generalizations, extensions and refinements have been developed. In this paper we present REDSIEX, (RED de SIstemas EXpertos) which is a network of expert systems within a blackboard architecture, for the cooperation solution of distributed problems. The REDSIEX system inherits various of the elements defined by the architecture of HEARSAY II and incorporates new components and organization. These produce a very characteristic and exclusive global work style in the solution of problems, within a conceptual framework of emergent control. The main structural and functional characteristics of REDSIEX are discussed.
    Materialart: Digitale Medien
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  • 35
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 14 (1997), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 36
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 14 (1997), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: This paper presents an intelligent system to assist small investors to determine stock trend signals for investment in stock business. A pilot system is built providing three main categories of technical and analysis theories, namely momentum, moving average, and support/resistance line. It has extensive graphic interface design to facilitate the usage of the system. For novice investors, the system is associated with tutoring features and it supports analysis study of the rationale behind some system recommendations. Skilful investors can explore the various theories for the prediction by means of adjusting the weightings, combinations and even some independent variables allocated by the intelligent system. General users can therefore formulate their investment strategies upon system recommendations under different investment criteria accordingly.
    Materialart: Digitale Medien
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  • 37
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 14 (1997), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: The manner in which CARMEN (Constraints And Rules Management ENgine), an operational expert system generator developed as part of the ESPRIT project ITHACA, models and acquires knowledge is discussed. Central to CARMEN are three types of control entities (TASKs, MKSs and BKSs) which are used to describe problem-solving at the knowledge-use level. Modeling of domain knowledge is done both at the deep and surface levels. The Integrity Checking Task (or ICT) is used to illustrate the manner in which CARMEN works. We conclude the paper with a comparison of CARMEN with other approaches in knowledge modeling.
    Materialart: Digitale Medien
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  • 38
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 39
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: The Allen and Koomen planner is intractable in two ways: the Allen interval algebra is an intractable temporal reasoner, and the collapsing problem introduces a large branching factor in the search space for a solution plan. We define independence and dependence for networks to address both problems. Independence is used to find a decomposition of an interval network, and dependence is used to focus search when faced with the collapsing problem.
    Materialart: Digitale Medien
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  • 40
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: We analyze the problem of computing the minimal labels for a network of temporal relations in point algebra. Van Beek proposes an algorithm for accomplishing this task, which takes O(max(n3, n2 m)) time (for n points and m ≠-relations). We show that the proof of the correctness of this algorithm given by van Beek and Cohen is faulty, and we provide a new proof showing that the algorithm is indeed correct.
    Materialart: Digitale Medien
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  • 41
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: As influence diagrams become a popular representational tool for decision analysis, influence diagram evaluation attracts more and more research interests. In this article, we present a new, two-phase method for influence diagram evaluation. In our method, an influence diagram is first mapped onto a decision graph and then the analysis is carried out by evaluating the decision graph. Our method is more efficient than Howard and Matheson's because, among other reasons, our method generates a much smaller decision graph for the same influence diagram. Like those most recent algorithms reported in the literature, our method also provides a clean interface between influence diagram evaluation and Bayesian net evaluation. Consequently, various well-established algorithms for Bayesian net evaluation can be used in influence diagram evaluation. Furthermore, our method has a few unique merits. First, it takes advantage of asymmetry in influence diagrams to avoid unnecessary computation. Second, by using heuristic search techniques, it provides an explicit mechanism for using heuristic information that may be available in a domain-specific form. These additional merits make our method more efficient than the current algorithms in general. Finally, by using decision graphs as an intermediate representation, the value of perfect information can be computed in a more efficient way.
    Materialart: Digitale Medien
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  • 42
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Vagueness and uncertainty have attracted the attention of philosophers and logicians for many years. Recently, AI researchers contributed essentially to this area of research. Fuzzy set theory and the theory of evidence are seemingly the most appealing topics. On this note we present a new approach, based on the rough set theory, for looking to these problems. The theory of rough sets seems a suitable mathematical tool for dealing with problems of vagueness and uncertainty. This paper is a modified version of the author's lecture titled “An inquiry into vagueness and uncertainty,” which was delivered at the AI Conference in Wigry (Poland), 1994.
    Materialart: Digitale Medien
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  • 43
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: This paper presents results of experiments showing how machine learning methods arc useful for rule induction in the process of knowledge acquisition for expert systems. Four machine learning methods were used: ID3, ID3 with dropping conditions, and two options of the system LERS (Learning from Examples based on Rough Sets): LEM1 and LEM2. Two knowledge acquisition options of LERS were used as well. All six methods were used for rule induction from six real-life data sets. The main objective was to lest how an expert system, supplied with these rule sets, performs without information on a few attributes. Thus an expert system attempts to classify examples with all missing values of some attributes. As a result of experiments, it is clear that all machine learning methods performed much worse than knowledge acquisition options of LERS. Thus, machine learning methods used for knowledge acquisition should be replaced by other methods of rule induction that will generate complete sets of rules. Knowledge acquisition options of LERS are examples of such appropriate ways of inducing rules for building knowledge bases.
    Materialart: Digitale Medien
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  • 44
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Knowledge discovery in databases, or dala mining, is an important direction in the development of data and knowledge-based systems. Because of the huge amount of data stored in large numbers of existing databases, and because the amount of data generated in electronic forms is growing rapidly, it is necessary to develop efficient methods to extract knowledge from databases. An attribute-oriented rough set approach has been developed for knowledge discovery in databases. The method integrates machine-learning paradigm, especially learning-from-examples techniques, with rough set techniques. An attribute-oriented concept tree ascension technique is first applied in generalization, which substantially reduces the computational complexity of database learning processes. Then the cause-effect relationship among the attributes in the database is analyzed using rough set techniques, and the unimportant or irrelevant attributes are eliminated. Thus concise and strong rules with little or no redundant information can be learned efficiently. Our study shows that attribute-oriented induction combined with rough set theory provide an efficient and effective mechanism for knowledge discovery in database systems.
    Materialart: Digitale Medien
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  • 45
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: This paper presents an empirical study of the use of the rough set approach to reduction of data for a neural network classifying objects described by quantitative and qualitative attributes. Two kinds of reduction are considered: reduction of the set of attributes and reduction of the domains of attributes. Computational tests were performed with five data sets having different character, for original and two reduced representations of data. The learning time acceleration due to data reduction is up to 4.72 times. The resulting increase of misclassification error does not exceed 11.06%. These promising results let us claim that the rough set approach is a useful tool for preprocessing of data for neural networks.
    Materialart: Digitale Medien
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  • 46
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: In this paper, we introduce the notion of interval structures in an attempt to establish a unified framework for representing uncertain information. Two views are suggested for the interpretation of an interval structure. A typical example using the compatibility view is the rough set model in which the lower and upper approximations form an interval structure. Incidence calculus adopts the allocation view in which an interval structure is defined by the tightest lower and upper incidence bounds. The relationship between interval structures and interval-based numeric belief and plausibility functions is also examined. As an application of the proposed model, an algorithm is developed for computing the tightest incidence bounds.
    Materialart: Digitale Medien
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  • 47
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: “Simpson's paradox,” first described nearly a century ago, is an anomaly that sometimes arises from pooling data. Dramatic instances of the paradox have occurred in real life in the domains of epidemiology and admissions policies. Many writers have recently described hypothetical examples of the paradox arising in other areas of life and it seems possible that the paradox may occur frequently in mundane domains but with less serious implications. Thus, it is not surprising that the paradox should arise in commonsense reasoning, that subarea of artificial intelligence that seeks to axiomatize reasoning in such mundane domains. It arises as the problem “approximate proof by cases” and the question of whether to accept it may well depend on whether we wish to construct performance or competence models of reasoning. This article gives a brief history of the paradox and discusses its occurrence in our own discipline. It argues that if the paradox occurs frequently but undramatically in real life, every uncertain reasoning system will have to deal with the problem in some way.
    Materialart: Digitale Medien
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  • 48
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: We present the syntax and proof theory of a logic of argumentation, LA. We also outline the development of a category theoretic semantics for LA. LA is the core of a proof theoretic model for reasoning under uncertainty. In this logic, propositions are labeled with a representation of the arguments which support their validity. Arguments may then be aggregated to collect more information about the potential validity of the propositions of interest. We make the notion of aggregation primitive to the logic, and then define strength mappings from sets of arguments to one of a number of possible dictionaries. This provides a uniform framework which incorporates a number of numerical and symbolic techniques for assigning subjective confidences to propositions on the basis of their supporting arguments. These aggregation techniques are also described with examples.
    Materialart: Digitale Medien
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  • 49
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: In this paper we focus on the temporal constraints between causes and effects of causal relations, and, to deal correctly with such relations, we stress the importance of analyzing the action-types (aspectual category) of causes and effects. In particular, we propose a domain-independent ontology in which the distinctions between action-types (e.g., the distinction between durative and punctual situations) are dealt with, and different types of causal relations are distinguished, on the basis of (i) the temporal constraints they impose between causes and effects (these constraints are expressed in a temporal formalism that extends Vilain's point interval algebra) and (ii) the action-types of their causes and effects. Our ontology allows one to capture precisely the temporal constraints imposed by causation and the action-types of the related situations. Moreover, in case the user has no accurate knowledge about the action-types of some situations and/or the types of some causal connections to be dealt with, our formalism allows the user to leave the descriptions underspecified, and more specific pieces of information may be inferred. Inferences provide a flow of information about action-types to information about temporal constraints in causation and vice versa, and demonstrate that a deep integration of time and causation is provided also at the inferential level.
    Materialart: Digitale Medien
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  • 50
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: The Galois (or concept) lattice produced from a binary relation has proved useful for many applications. Building the Galois lattice can be considered a conceptual clustering method because it results in a concept hierarchy. This article presents incremental algorithms for updating the Galois lattice and corresponding graph, resulting in an incremental concept formation method. Different strategies are considered based on a characterization of the modifications implied by such an update. Results of empirical tests are given in order to compare the performance of the incremental algorithms to three other batch algorithms. Surprisingly, when the total time for incremental generation is used, the simplest and less efficient variant of the incremental algorithms outperforms the batch algorithms in most cases. When only the incremental update time is used, the incremental algorithm outperforms all the batch algorithms. Empirical evidence shows that, on the average, the incremental update is done in time proportional to the number of instances previously treated. Although the worst case is exponential, when there is a fixed upper bound on the number of features related to an instance, which is usually the case in practical applications, the worst-case analysis of the algorithm also shows linear growth with respect to the number of instances.
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  • 51
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: We propose a procedure for estimating DBLEARN's potential for knowledge discovery, given a relational database and concept hierarchies. This procedure is most useful for evaluating alternative concept hierarchies for the same database. The DBLEARN knowledge discovery program uses an attribute-oriented inductive-inference method to discover potentially significant high-level relationships in a database. A concept forest, with at most one concept hierarchy for each attribute, defines the possible generalizations that DBLEARN can make for a database. The potential for discovery in a database is estimated by examining the complexity of the corresponding concept forest. Two heuristic measures are defined based on the number, depth, and height of the interior nodes. Higher values for these measures indicate more complex concept forests and arguably more potential for discovery. Experimental results using a variety of concept forests and four commercial databases show that in practice both measures permit quite reliable decisions to be made; thus, the simplest may be most appropriate.
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  • 52
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: The inverted pendulum poses serious problems for qualitative modeling methods, so it is a good benchmark to lest their performance. This paper shows how a new data analysis method known as rough set theory can be utilized to swing up and stabilize the pendulum. Our approach to this task consists of deriving control rules from the actions of a human operator stabilizing the pendulum and subsequently using them for automatic control. Rule derivation is based on the “learning from examples” principle and does not require knowledge of a quantitative model of the system.
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  • 53
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: We present some methods, based on the rough set and Boolean reasoning approaches, for extracting laws from decision tables. First we discuss several procedures for decision rules synthesis from decision tables. Next we show how to apply some near-to-functional relations between data to data filtration. Two methods of searching for new classifiers (features) are described: searching for new classifiers in a given set of logical formulas, and searching for some functions approximating near-to-functional relations.
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  • 54
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Computational intelligence 11 (1995), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: We apply rough set constructs to inductive learning from a database. A design guideline is suggested, which provides users the option to choose appropriate attributes, for the construction of data classification rules. Error probabilities for the resultant rule are derived. A classification rule can be further generalized using concept hierarchies. The condition for preventing overgeneralization is derived. Moreover, given a constraint, an algorithm for generating a rule with minimal error probability is proposed.
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  • 55
    Digitale Medien
    Digitale Medien
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Computational intelligence 14 (1998), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 56
    Digitale Medien
    Digitale Medien
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Computational intelligence 14 (1998), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Shapes such as triangles or rectangles can be defined in terms of geometric properties invariant under a group of transformations. Complex shapes can be described by logic formulas with simpler shapes as the atoms. A standard technique for computing invariant properties of simple shapes is the method of moment invariants, known since the early 1960s. We generalize this technique to shapes described by arbitrary monotone formulas (formulas in propositional logic without negation). Our technique produces a reduced Gröbner basisfor approximate shape descriptions. We show how to use this representation to solve decision problems related to shapes. Examples include determining if a figure has a particular shape, if one description of a shape is more general than another, and whether a specific geometric property is really necessary for specifying a shape. Unlike geometry theorem proving, our approach does not require the shapes to be explicitly defined. Instead, logic formulas combined with measurements performed on actual shape instances are used to compute well-characterized least squares approximations to the shapes. Our results provide a proof that decision problems stated in terms of these approximations can be solved in a finite number of steps.
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  • 57
    Digitale Medien
    Digitale Medien
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Computational intelligence 14 (1998), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: This paper is about reducing influence diagram (ID) evaluation into Bayesian network (BN) inference problems that are as easy to solve as possible. Such reduction is interesting because it enables one to readily use one's favorite BN inference algorithm to efficiently evaluate IDs. Two such reduction methods have been proposed previously (Cooper 1988; Shachter and Peot 1992). This paper proposes a new method. The BN inference problems induced by the new method are much easier to solve than those induced by the two previous methods.
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  • 58
    Digitale Medien
    Digitale Medien
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Computational intelligence 14 (1998), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: A clear understanding and formalization of actions is essential to computing, and especially so to reasoning about and constructing intelligent agents. Several approaches have been proposed over the years. However, most approaches concentrate on the causes and effects of actions, but do not give general characterizations of actions themselves. A useful formalization of actions would be based on a general, possibly nondiscrete, model of time that allows branching (to capture agents’ choices). A desirable formalization would also allow actions to be of arbitrary duration and would permit multiple agents to act concurrently. We develop a branching-time framework that allows great flexibility in how time and action are modeled. We motivate and formalize several coherence constraints on our models, which capture some nice intuitions and validate some useful inferences relating actions with time.
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  • 59
    Digitale Medien
    Digitale Medien
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Computational intelligence 14 (1998), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: The efficiency of A* searching depends on the quality of the lower bound estimates of the solution cost. Pattern databases enumerate all possible subgoals required by any solution, subject to constraints on the subgoal size. Each subgoal in the database provides a tight lower bound on the cost of achieving it. For a given state in the search space, all possible subgoals are looked up in the pattern database, with the maximum cost over all lookups being the lower bound. For sliding tile puzzles, the database enumerates all possible patterns containing N tiles and, for each one, contains a lower bound on the distance to correctly move all N tiles into their correct final location. For the 15-Puzzle, iterative-deepening A* with pattern databases(N ="8) reduces the total number of nodes searched on a standard problem set of 100 positions by over 1000-fold.
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  • 60
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Inc.
    Computational intelligence 14 (1998), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: We present a point-based spatiotemporal first-order logic for representing the qualitative and quantitative spatial temporal knowledge needed to reason about motion in a two-dimensional space. A feature of the logic is the uniform treatment of space and time. The knowledge of a simplified world, a two-dimensional street network with active traffic lights, is represented, and the reasoning problem of how a robot moves from one place to another in the world is formalized with the proposed logic.
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  • 61
    Digitale Medien
    Digitale Medien
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Computational intelligence 13 (1997), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: The standard AI method for representing temporal information in a first-order logic is to directly associate the information with a time point or interval via a relation. We present a new paradigm for temporal knowledge representation. All point-based temporal information is translated to real-valued functions in the Cartesian plane. For example, information that is true/false at a point becomes a 0–1 function. Other types of information, such as velocity, are directly represented with real-valued functions. The unique feature of the proposed approach is the use of the Riemann integral to represent interval-based information. Our approach is based on the fact that what is true at every point in an interval completely determines what is true over the interval. We conclude with a formal presentation of a first-order logic that is based on the proposed representation.
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  • 62
    Digitale Medien
    Digitale Medien
    Boston, USA and Oxford, UK : Blackwell Publishers Inc
    Computational intelligence 13 (1997), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: In this paper the idea is presented that human communication is carried through messages that are the result of the integration of a set of communicative acts, some of which are, in a traditional view, contextual phenomena with respect to a main (linguistic) communication act. A formalization of the notion of communicative situation is attempted, which eliminates the distinction between context and main communication acts. The ideas presented in this paper come from a re-thinking of a prototype implemented in 1989 for the ESPRIT Project 527, CFID whose main features are presented in Section 4.
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  • 63
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Inc.
    Computational intelligence 13 (1997), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: In description logics, default knowledge is exclusively treated as incidental rules. However, as few concepts are definable using only strict knowledge, imposing strict definitions leads to terminological knowledge bases that mostly contain partially defined concepts. This is a real problem because such concepts can only be inserted as leaves of the terminology. Moreover, instance recognition is biased as these concepts must be explicitly mentioned as properties of these instances. It follows that partially defined concepts are described with necessary but not sufficient conditions. As a solution to these problems, we propose to integrate defaults in concept definitions and we argue that this is essential for our diagnosis application. We introduce a description language ALεδ with default(δ) and exception(ε) connectives. The cornerstone of our approach is the introduction of a definitional point of view where a default can be part of a concept definition, whereas in the classical inheritance one it is only viewed as a weak implication. We go on to describe a map between the definition of a concept and its inherited properties, and we show that the combination of these definitional and inheritance levels considerably improves the capabilities of classification processes. In particular this allows us to distinguish sure from probable instances and typical from exceptional instances. Finally we provide a specific operation, object refinement, which consists in enlarging object descriptions with exceptions in order to find additional concepts the object is an instance of. This operation is useful for our diagnosis application.
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  • 64
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Inc.
    Computational intelligence 13 (1997), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: We present a mathematical model providing a formal basis for analogical reasoning, referred to as abstractional concept mapping. The approach provides a formal basis for all comparison–based reasoning (e.g., literal similarity, analogy, metaphor, and scientific models) in that given any two descriptions in first–order logic, arbitrary comparisons of similarity are representable as first–order theories (referred to as “comparison theories”), dependent only on the notion of logical truth and not on domain–specific heuristics or particular features of the knowledge representation.
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  • 65
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Inc.
    Computational intelligence 13 (1997), S. 0 
    ISSN: 1467-8640
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Fifteen years of work on nonmonotonic logic has certainly increased our understanding of the area. However, given a problem in which nonmonotonic reasoning is called for, it is far from clear how one should go about modeling the problem using the various approaches. We explore this issue in the context on two of the best–known approaches, Reiter's default logic and Moore's autoepistemic logic, as well as two related notions of “only knowing,” due to Halpern and Moses and to Levesque. In particular, we return to the original technical definitions given in these papers and examine the extent to which they capture the intuitions they were designed to capture.
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  • 66
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: Increased interest in problem-solving decisions in the area of engineering leads to an increased demand for expert system applications. This paper presents an expert system that detects faults in hydraulic systems by simulating the reasoning of the expert, using as guide the hydraulic circuit of the system on the screen and extensive graphical information. A graphical user interface, appropriate explanations by using hypertext and user modelling have been implemented in order to produce a system that overcomes the usual interface problems of expert systems in engineering. This system has been developed in close collaboration with the company Automation Systems SA (Mannesmann Rexroth — Greece) and is currently used to detect faults in hydraulic presses, a fact that presents evidence of its usefulness.
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  • 67
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 68
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: Retrieving ad hoc data from information systems is difficult for non-expert users. Despite the efforts made in improving query tools (e.g. visual query construction, Query By Example, query templates), empirical research shows that constructing a request is still difficult (Reisner 1988). The core of the problem seems to be in the difference between the way the user perceives the application domain and the way the system requires the user to see it (Carroll & Olsen 1988). In this paper we describe the design and implementation of an ad hoc query tool developed by RCC for a personnel information system, and how AI techniques contributed to this module. The main novel idea incorporated in the query tool is to present the user with a means to question the conceptual model of the system instead of the technical model. To support this, a blackboard architecture has been designed and implemented with knowledge sources that translate the user's questions to database queries. The query tool is used in daily practice by over 100 users.
    Materialart: Digitale Medien
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  • 69
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: A fuzzy reasoning algorithm is presented in this paper. It is based on the concept of a generalised fuzzy production rule that adds new conjunctions such as ADD and REL to the usual AND and OR conjunctions for the linkage of premises in conventional rules. A definition is given for weights and related factors, to express and measure a relation between the premises. A formal representation for fuzzy premises is presented, together with the introduction of a fuzzy match method. Multiple thresholds are used to convert the uncertainty measures of reasoning results into linguistic variables. We have applied the fuzzy reasoning algorithm to a frame-based hybrid expert system tool. An object-oriented approach is used in implementing the system. Some results of the application are presented and discussed.
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  • 70
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: Architectural design is a complex task which requires expert knowledge, a great deal of experience and no small amount of creativity and artistic flair. However, while humans are very good at creativity, intuition, artistry and evaluation, they are notoriously bad at routine mundane tasks. Searching through large databases of past designs can be such a task. This can result in useful design knowledge being ignored. In this paper we present a way to aid architects in their work by providing a software tool aimed at recording, retrieving and evaluating architectural designs.
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  • 71
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: The purpose of this research is to present a comprehensive bibliography of neural network application research in business. One hundred and twenty-seven neural network application papers and reports are identified through exhaustive literature searches. A classification of these articles by application area reveals that neural networks are being used for a diverse range of corporate functional activities, particularly in the areas of production/operations and finance. Information on the neural network development language/tool, the learning paradigm and the computer operating environment as reported in each article is included. Those journals which have published the most neural network business applications are also presented.
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  • 72
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: A real-time visual servo tracking system for an industrial robot has been developed. Instead of a charge coupled device (CCD), a position sensitive detector (PSD) is used as the real-time vision sensor due to its fast response (the light position is transduced to analogue current). A neural network learns the complex association between the 3D object position and its sensor reading, and uses it to track that object, either moving or stationary. It also turns out that this scheme lends itself to a user-friendly way to teach workpaths for industrial robots. Furthermore, for real-time use of the neural net, an efficient neural network architecture has been developed based on the concept of input space partitioning and local learning. Real experiments indicate the system's characteristics of fast processing and learning as well as optimal usage of network resources.
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  • 73
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: Computational support for concurrent engineering design presents a number of issues in the design of knowledge-based systems. A fundamental concern is the need to provide the life-cycle perspective in recommending design alternatives. It is argued that such a complex knowledge-based system should be distributed, due to the inherent problems with large knowledge bases and the maintenance of consistency. Inconsistent local views of a problem and different priorities on design issues are expected between different knowledge-based design perspectives. These inconsistencies and different priorities will lead inherently to conflict which has to be resolved. This paper addresses the issues and key variables in conflict resolution and presents a strategy that can be applied for managing the conflict resolution process. We propose negotiation as the method of analysing a conflict situation, applying an appropriate conflict resolution strategy and monitoring its performance. We present an overview of the nature of conflict and some conflict resolution strategies, and see in what situations certain strategies are appropriate.
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  • 74
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 75
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 76
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 77
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: Research into the development and impacts of expert systems has accumulated to a point where it may be said to constitute a distinct field of study. As such, the evolution, organisation and dissemination of expert system research are themselves topics for investigation. Here we focus on the dissemination aspect, providing objective rankings of journals that have had the greatest impacts on recent expert system research. Our study examines the citation patterns of all research published in five expert systems journals during the past five years. Over 14 000 citations to more than 800 journals are analysed under two kinds of ranking schemes. These are based on cumulative citation counts and normalised citation counts. The latter adjusts for the number of years a journal article has been available to be cited. The reported rankings will be of interest to all who want to know where scientific developments that influence expert system research are reported: those who conduct, support, evaluate and study expert system research.
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  • 78
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 79
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 80
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
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  • 81
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: In this paper we describe TheMD (The Methods Designer) shell and its use in the development of an expert system, known as Dust-Expert, for the relief of dust explosions. We begin by providing the motivation for the development of TheMD Shell by evaluating a prototype implementation of Dust-Expert using a conventional shell. This evaluation is carried out in terms of the transparency, reliability and extensibility of the system.The lessons learned from this evaluation have led to the development of TheMD Shell. We describe the main features of the shell which include more appropriate schemas, more complete explanation capabilities, a ranking scheme and equation-solving capabilities. We illustrate the use of the schemas and the importance of the equation-solving capabilities by examples from the domain of dust explosions. We also provide a formal specification of the ranking scheme that we adopt. We conclude by highlighting the benefits of our approach in comparison to the usual process of developing knowledge-based systems.
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  • 82
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Subjective Probability George Wright and Peter Ayton (Eds.)Knowledge-based Information Systems D. Partridge and K. M. HussainIntelligent Agents: the New Revolution in Software Christine Guilfoyle and Ellie WarnerHigh Performance Computing Demystified D. Loshin, AP ProfessionalKnowledge Processing and Applied Artificial Intelligence Soumitra Dutta
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  • 83
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: A knowledge-based system (KBS) could be an ideal decision tool to reduce the complexity of planning non-destructive evaluation (NDE) or scheduling inspections. Such a KBS would have to evaluate the advantages and limitations of each available technique, given the specificity of a problem, and incorporate the fundamental knowledge derived from failure analysis. The KBS should include topics such as materials vs. defect size and type, probability of failure, and basic reliability information. In order to organise knowledge of materials degradation efficiently, the parameters that control various forms of failure first have to be rationalised in a general framework. This framework and their factors would then constitute a quantitative and easily programmable description of the independent variables controlling the intensity of a failure. This paper describes such a framework which could guide the general selection of NDE for materials failure, with a particular emphasis on corrosion related failures. The framework architecture itself was constructed using an object-oriented methodology for maximum flexibility, since it was anticipated that the materials parameters could easily be described as multidimensional objects.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 84
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 85
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: They all stink: food and drink, perfumery, household products, soaps, shampoos, paints, manufacturing processes, printing processes, waste products, contaminated air, and automotive emissions and environmental testing. In every case, small is a criterion of quality.Automated techniques to ‘smell’ or ‘taste’ liquids using mass spectrometry and gas chromatography are time consuming, require skilled personnel and often do not give the information required for qualitative ‘testing’. A new technique is now available due to the advances in neural computing technology and multi-sensor array technology. The combination of these two approaches tries to simulate the human olfactory system in a simplified form. This paper shows that the recognition ability of an odour sensor array will be significantly improved using a neural computing approach in order to discriminate between similar odours.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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  • 86
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 87
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 88
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 89
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 90
    Digitale Medien
    Digitale Medien
    Oxford, UK : Blackwell Publishing Ltd
    Expert systems 12 (1995), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 91
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 92
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: This paper provides complete analysis of natural language interface from the screen manager to the parser/understander, even though it has some limitations. The main focus is on the design and development of a subsystem for understanding natural language input in an expert system. Fast response time and user-friendliness were the most important considerations in the design. The screen manager provides an easy editing capability for the user. The spelling correction system can detect most spelling errors and correct them automatically, quickly and effectively. The Lexical Functional Grammar (LFG) parser and the understander are designed to handle most types of simple sentences, fragments, and ellipses. As a result, this system as applied to a man-machine dialogue gives improved ill-formed natural language input handling capabilities to the expert system.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 93
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 94
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: This paper describes the application of Artificial Intelligence techniques for plan generation, plan execution, and plan monitoring to automate a Deep Space Communication Station. This automation allows a communication station to respond to a set of tracking goals by appropriately reconfiguring the communications hardware and software to provide the requested communications services. In particular this paper describes: (1) the overall automation architecture, (2) the plan generation and execution monitoring AI technologies used and implemented software components, and (3) the knowledge engineering process and effort required for automation. This automation was demonstrated in February 1995, at the DSS13 Antenna Station in Goldstone, CA on a series of Voyager tracks and the technologies demonstrated are being transferred to the operational Deep Space Network stations.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 95
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: In this paper a hybrid knowledge-based system which exploits both rule-based reasoning (RBR) and case-based reasoning (CBR) is presented. The issues of RBR and CBR in general in the context of legal knowledge-based systems and legislation in rule form and previously-decided cases in an interconnected graph form are discussed. It is possible for the user to select either reasoning method (RBR or CBR), or indicate no preference. The rule base of this system consists of two types of rule. The first type of rule determines which options are legally applicable. The second type indicates how the courts are likely to act within the range of options available, which is determined by the first type of rule. When CBR is selected, the system uses the features of previously-decided cases to select the most similar cases to the situation that is described in the input and displays their details of decisions. In case of the selection of no preference option, the system applies RBR and CBR method separately, and then presents results based on an automated relative rating of the qualities of the RBR (based on the second type of rules) and CBR advice. These ideas have been implemented in a prototype system, known as Advisory Support for Home Settlement in Divorce (ASHSD-II).
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 96
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Abstract: A prototype system for automated defect classification and characterisation of automotive or other components involving two separate inspection sensors, vision and electromagnetic, was developed. This paper concentrates on the development work and issues related to the electromagnetic sensor. In particular, the issues relating to knowledge acquisition and knowledge representation are discussed. For instance, one of the problems which arose during the development work was that it appeared that the reasoning carried out unconsciously by a human was more complex than had been realised and not easily encapsulated as high level knowledge. A blackboard architecture was used to integrate the different areas of expertise required for each sensor to interpret the results of the inspections. The main issue here was in the effective use of the blackboard architecture for intelligent data fusion at all levels to improve interpretation.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 97
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: The purpose of this research is to present a comprehensive bibliography of genetic algorithm application research in business. Ninety-seven genetic algorithm papers (98 applications) are identified through the exhaustive literature searches. A classification of these articles by application area reveals that genetic algorithms are being used for a diverse range of corporate functional activities, particularly in the areas of production/operations and information systems. Information on the genetic algorithm development tool/language and the computer operating environment as reported in each article is included. Those journals which have published the most genetic algorithm business applications are also presented.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 98
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Notizen: Although color has appeal for developers and consumers alike, color reproduction poses a major problem in many computer based applications including multimedia and desktop publishing. The problem arises because of the device-independence of color, and the way each device processes color. Matching the appearance of monitor and print images, and achieving satisfactory results is complex. Not only are there fundamental differences between computer screen (additive) and printers (subtractive), but subtractive color is in general more prone to errors due to dye inadequacies. In order to control the error in porting color, different techniques have been applied. In this paper, the utilization of artificial neural networks as well as abductive modeling approaches to color error reduction are introduced from an RGB (Red Green Blue) color model perspective. Analysis of the results and on-going research issues are discussed.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 99
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
  • 100
    Digitale Medien
    Digitale Medien
    Oxford, UK and Boston, USA : Blackwell Publishers Ltd
    Expert systems 15 (1998), S. 0 
    ISSN: 1468-0394
    Quelle: Blackwell Publishing Journal Backfiles 1879-2005
    Thema: Informatik
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
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