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  • 1
    Electronic Resource
    Electronic Resource
    The NASA Technical Report Server (1995)
    Bingley : Emerald
    Internet research 5 (1995), S. 25-36 
    Details
    ISSN: 1066-2243
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Computer Science
    Notes: The National Aeronautics and Space Act of 1958 established theNational Aeronautics and Space Administration (NASA) and charged it to"provide for the widest practicable and appropriate disseminationof information concerning ... its activities and the resultsthereof". The search for innovative methods to distribute NASA'sinformation led a grassroots team to create the NASA Technical ReportServer (NTRS), which uses the World Wide Web and other popularInternet-based information systems.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/10662249510094768
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    Paper (German National Licenses)
    Fulltext
  • 2
    Electronic Resource
    Electronic Resource
    Optimizing the NASA Technical Report Server (1996)
    Bingley : Emerald
    Internet research 6 (1996), S. 64-70 
    Details
    ISSN: 1066-2243
    Source: Emerald Fulltext Archive Database 1994-2005
    Topics: Computer Science
    Notes: Explains how the NASA Technical Report Server, a World Wide Web report distribution NASA technical publications service, has been modified for performance enhancement, greater protocol support and human interface optimization. Results include: parallel database queries, significantly decreasing user access times by an average factor of 2.3; access from clients behind firewalls and/or proxies which truncate excessively long Uniform Resource Locators; access to non-Wide Area Information Server (WAIS) databases and compatibility with the Z39-50.3 protocol; and a streamlined user interface.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1108/10662249610123692
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    Paper (German National Licenses)
    Fulltext
  • 3
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    Building Multi-Discipline, Multi-Format Digital Libraries Using Clusters and Buckets (1997)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Our objective was to study the feasibility of extending the Dienst protocol to enable a multi-discipline, multi-format digital library. We implemented two new technologies: cluster functionality and publishing buckets. We have designed a possible implementation of clusters and buckets, and have prototyped some aspects of the resultant digital library. Currently, digital libraries are segregated by the disciplines they serve (computer science, aeronautics, etc.), and by the format of their holdings (reports, software, datasets, etc.). NCSTRL+ is a multi-discipline, multi-format digital library (DL) prototype created to explore the feasibility of the design and implementation issues involved with created a unified, canonical scientific and technical information (STI) DL. NCSTRL+ is based on the Networked Computer Science Technical Report Library (NCSTRL), a World Wide Web (WWW) accessible DL that provides access to over 80 university departments and laboratories. We have extended the Dienst protocol (version 4.1.8), the protocol underlying NCSTRL, to provide the ability to cluster independent collections into a logically centralized DL based upon subject category classification, type of organization, and genre of material. The concept of buckets provides a mechanism for publishing and managing logically linked entities with multiple data formats.
    Keywords: Documentation and Information Science
    Type: NASA-TM-112876 , NAS 1.15:112876
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 4
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    Lyceum: A Multi-Protocol Digital Library Gateway (1997)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Lyceum is a prototype scalable query gateway that provides a logically central interface to multi-protocol and physically distributed, digital libraries of scientific and technical information. Lyceum processes queries to multiple syntactically distinct search engines used by various distributed information servers from a single logically central interface without modification of the remote search engines. A working prototype (http://www.larc.nasa.gov/lyceum/) demonstrates the capabilities, potentials, and advantages of this type of meta-search engine by providing access to over 50 servers covering over 20 disciplines.
    Keywords: Documentation and Information Science
    Type: NASA-TM-112871 , NAS 1.15:112871
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 5
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    Recent improvements in the NASA technical report server (1995)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: The NASA Technical Report Server (NTRS), a World Wide Web (WWW) report distribution service, has been modified to allow parallel database queries, significantly decreasing user access time by an average factor of 2.3, access from clients behind firewalls and/or proxies which truncate excessively long Uniform Resource Locators (URL's), access to non-Wide Area Information Server (WAIS) databases, and compatibility with the Z39-50.3 protocol.
    Keywords: DOCUMENTATION AND INFORMATION SCIENCE
    Type: NASA-TM-110209 , NAS 1.15:110209 , NIPS-95-06259
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 6
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    The widest practicable dissemination: The NASA technical report server (1995)
    In:  Other Sources
    Details
    Publication Date: 2019-06-28
    Description: The search for innovative methods to distribute NASA's information lead a gross-roots team to create the NASA Technical Report Server (NTRS), which uses the World Wide Web and other popular Internet-based information systems as search engines. The NTRS is an inter-center effort which provides uniform access to various distributed publication servers residing on the Internet. Users have immediate desktop access to technical publications from NASA centers and institutes. This paper presents the NTRS architecture, usage metrics, and the lessons learned while implementing and maintaining the services over the initial 6-month period. The NTRS is largely constructed with freely available software running on existing hardware. NTRS builds upon existing hardware and software, and the resulting additional exposure for the body of literature contained will allow NASA to ensure that its institutional knowledge base will continue to receive the widest practicable and appropriate dissemination.
    Keywords: DOCUMENTATION AND INFORMATION SCIENCE
    Type: AIAA PAPER 95-0964 , ; : The use of EOS for
    Format: text
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    NASA TECHNICAL REPORTS
  • 7
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    The NASA Technical Report Server (1995)
    In:  CASI
    Details
    Publication Date: 2018-06-05
    Description: The National Aeronautics and Space Act of 1958 established NASA and charged it to "provide for the widest practicable and appropriate dissemination of information concerning its activities and the results thereof." The search for innovative methods to distribute NASA's information lead a grass-roots team to create the NASA Technical Report Server (NTRS), which uses the World Wide Web and other popular Internet-based information systems as search engines. The NTRS is an inter-center effort which provides uniform access to various distributed publication servers residing on the Internet. Users have immediate desktop access to technical publications from NASA centers and institutes. The NTRS is comprised of several units, some constructed especially for inclusion in NTRS, and others that are existing NASA publication services that NTRS reuses. This paper presents the NTRS architecture, usage metrics, and the lessons learned while implementing and maintaining the service. The NTRS is largely constructed with freely available software running on existing hardware. NTRS builds upon existing hardware and software, and the resulting additional exposure for the body of literature contained ensures that NASA's institutional knowledge base will continue to receive the widest practicable and appropriate dissemination.
    Keywords: Documentation and Information Science
    Type: Internet Research: Electronic Network Applications and Policy; Volume 5; No. 2; 25-36
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 8
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    NASA Indexing Benchmarks: Evaluating Text Search Engines (1997)
    In:  CASI
    Details
    Publication Date: 2018-06-05
    Description: The current proliferation of on-line information resources underscores the requirement for the ability to index collections of information and search and retrieve them in a convenient manner. This study develops criteria for analytically comparing the index and search engines and presents results for a number of freely available search engines. A product of this research is a toolkit capable of automatically indexing, searching, and extracting performance statistics from each of the focused search engines. This toolkit is highly configurable and has the ability to run these benchmark tests against other engines as well. Results demonstrate that the tested search engines can be grouped into two levels. Level one engines are efficient on small to medium sized data collections, but show weaknesses when used for collections 100MB or larger. Level two search engines are recommended for data collections up to and beyond 100MB.
    Keywords: Documentation and Information Science
    Type: Journal of Network and Computer Applications; Volume 20; No. 4; 339-353
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 9
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    TRSkit: A Simple Digital Library Toolkit (1997)
    In:  CASI
    Details
    Publication Date: 2018-06-05
    Description: This paper introduces TRSkit, a simple and effective toolkit for building digital libraries on the World Wide Web. The toolkit was developed for the creation of the Langley Technical Report Server and the NASA Technical Report Server, but is applicable to most simple distribution paradigms. TRSkit contains a handful of freely available software components designed to be run under the UNIX operating system and served via the World Wide Web. The intended customer is the person that must continuously and synchronously distribute anywhere from 100 - 100,000's of information units and does not have extensive resources to devote to the problem.
    Keywords: Computer Programming and Software
    Type: Journal of Internet Cataloging; Volume 1; No. 2; 41-55
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 10
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    Evolution of Scientific and Technical Information Distribution (1998)
    In:  CASI
    Details
    Publication Date: 2018-06-05
    Description: World Wide Web (WWW) and related information technologies are transforming the distribution of scientific and technical information (STI). We examine 11 recent, functioning digital libraries focusing on the distribution of STI publications, including journal articles, conference papers, and technical reports. We introduce 4 main categories of digital library projects: based on the architecture (distributed vs. centralized) and the contributor (traditional publisher vs. authoring individual/organization). Many digital library prototypes merely automate existing publishing practices or focus solely on the digitization of the publishing cycle output, not sampling and capturing elements of the input. Still others do not consider for distribution the large body of "gray literature." We address these deficiencies in the current model of STI exchange by suggesting methods for expanding the scope and target of digital libraries by focusing on a greater source of technical publications and using "buckets," an object-oriented construct for grouping logically related information objects, to include holdings other than technical publications.
    Keywords: Documentation and Information Science
    Type: Journal of the American Society for Information Science; Volume 49; No. 1; 82-91
    Format: application/pdf
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    NASA TECHNICAL REPORTS
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