ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    Call number: S 99.0139(340)
    In: Wissenschaftliche Arbeiten der Fachrichtung Vermessungswesen der Universität Hannover, Nr. 340
    Type of Medium: Series available for loan
    Pages: 170 Seiten , Illustrationen, Diagramme
    ISSN: 0174-1454
    Series Statement: Wissenschaftliche Arbeiten der Fachrichtung Vermessungswesen der Universität Hannover Nr. 340
    Language: German
    Note: Dissertation, Gottfried Wilhelm Leibniz Universität Hannover, 2018 , 1 Einleitung 1.1 Hintergrund und Problemstellung 1.2 Ziel der Arbeit 1.2.1 Problemstellung: Erfassung von Trajektorien 1.2.2 Problemstellung: Erkennung von Bewegungsmustern in Trajektorien 1.3 Gliederung 2 Grundlagen 2.1 Modellierung von Objektbewegungen 2.2 Erfassung von Trajektorien 2.2.1 GNSS-Tracking 2.2.2 Videobasiertes Tracking 2.2.3 Vergleich des GNSS- und videobasierten Trackings 2.2.4 Weitere Tracking-Verfahren 2.2.5 Probabilistische Modellierung 2.2.6 Viterbi-Algorithmus 2.3 Erkennung von Bewegungsmustern 2.3.1 Data Mining 2.3.2 Filterung und Glättung 2.3.3 Segmentierung 2.3.4 Distanzmaße zur Bestimmung der Ähnlichkeit von Trajektorien 2.3.5 Maschinelles Lernen im Kontext raum-zeitlicher Daten 2.3.6 Sequenzmustererkennung 2.4 Dynamische Programmierung 2.5 Unterschiedliche Varianten der Datenverarbeitung 2.5.1 Zentrale und dezentrale Verarbeitung 2.5.2 Informationsaustausch 3 Stand der Forschung und verwandte Arbeiten 3.1 Erfassung von Trajektorien 3.1.1 Objektdetektion 3.1.2 Objekt-Tracking 3.1.3 Fusion heterogener Detektionen 3.1.4 Kommerzielle Systeme 3.1.5 Diskussion und Fazit 3.2 Mustererkennung in Trajektorien 3.2.1 Erkennung von wiederkehrenden unbekannten Mustern 3.2.2 Diskussion und Fazit 4 Erfassung von Trajektorien - GPS-unterstütztes Kamera-Tracking 4.1 Überblick über den Lösungsansatz 4.2 Sensoren und Eingangsdaten 4.2.1 GPS-Daten 4.2.2 Kameradaten 4.3 Vorverarbeitung 4.4 Fusion der heterogenen Daten 4.4.1 Detektionsbasierte Modellierung 4.4.2 Rasterbasierte Modellierung 4.4.3 Generierung der Trajektorien 4.5 Laufzeit des Algorithmus 4.6 System design 5 Mustererkennung in Trajektorien 5.1 Definition von Bewegungsmustern 5.2 Überblick über das entwickelte Mustererkennungsverfahren 5.3 Trajektorien als Datengrundlage 5.4 Vorverarbeitung 5.4.1 Datenbereinigung 5.4.2 Datenselektion 5.4.3 Datenintegration und Transformation 5.5 Mustererkennung: Clustering-basierter Ansatz 5.5.1 Segmentierung der Trajektorien 5.5.2 Clustering der Trajektorien 5.6 Mustererkennung: Sequenzbasierter Ansatz 5.6.1 Eingangsdaten 5.6.2 Generierung der Sequenzen aus Bewegungen 5.6.3 Bestimmung des Alphabets 5.6.4 Identifikation wiederkehrender Teilsequenzen 5.6.5 Rücktransformation zu Trajektorien 5.7 Laufzeit des Algorithmus 6 Experimente und Evaluation der Erfassung der Trajektorien 6.1 Verwendete Software 6.2 Verwendete Sensoren 6.3 Korrektheit der Zuordnungen 6.3.1 Experiment: 2 Personen 6.3.2 Experiment: Fußballanalyse 6.4 Geometrische Genauigkeit der Trajektorien 6.5 Laufzeit 6.6 Fazit 7 Experimente und Evaluation der Mustererkennung 7.1 Verwendete Software 7.2 Ergebnisverifikation 7.3 Interessantheitsmaß für Bewegungsmuster 7.4 Parameterstudien 7.4.1 Eingabeparameter 7.4.2 Datendichte 7.4.3 Invarianzen 7.5 Experimente auf realen Datensätzen 7.5.1 Beschreibung der Datensätze und Experimente 7.5.2 Experiment 1 - ACM DEBS 2013-Datensatz 7.5.3 Experiment 2 - GPS-Fußball-Datensatz 7.5.4 Experiment 3 - MapConstruction.org 7.5.5 Experiment 4 - Mantelpaviane 8 Zusammenfassung und Ausblick 8.1 Zusammenfassung 8.2 Ausblick Abbildungsverzeichnis Tabellenverzeichnis Literaturverzeichnis Lebenslauf Danksagung
    Location: Lower compact magazine
    Branch Library: GFZ Library
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 2
    Publication Date: 2015-08-06
    Electronic ISSN: 2220-9964
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 3
    Publication Date: 2016-11-09
    Electronic ISSN: 2220-9964
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 4
    Publication Date: 2021-04-08
    Description: The discovery of spatio-temporal dependencies within urban road networks that cause Recurrent Congestion (RC) patterns is crucial for numerous real-world applications, including urban planning and the scheduling of public transportation services. While most existing studies investigate temporal patterns of RC phenomena, the influence of the road network topology on RC is often overlooked. This article proposes the ST-Discovery algorithm, a novel unsupervised spatio-temporal data mining algorithm that facilitates effective data-driven discovery of RC dependencies induced by the road network topology using real-world traffic data. We factor out regularly reoccurring traffic phenomena, such as rush hours, mainly induced by the daytime, by modelling and systematically exploiting temporal traffic load outliers. We present an algorithm that first constructs connected subgraphs of the road network based on the traffic speed outliers. Second, the algorithm identifies pairs of subgraphs that indicate spatio-temporal correlations in their traffic load behaviour to identify topological dependencies within the road network. Finally, we rank the identified subgraph pairs based on the dependency score determined by our algorithm. Our experimental results demonstrate that ST-Discovery can effectively reveal topological dependencies in urban road networks.
    Electronic ISSN: 2220-9964
    Topics: Architecture, Civil Engineering, Surveying , Geosciences
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
  • 5
    Publication Date: 2023-10-24
    Description: Similar to other research fields, new knowledge in the Earth System Sciences is increasingly produced by computational research. However, the reproducibility of this type of research has been shown to be very limited, and its efficiency and quality need to be improved. Reproducibility requires researchers to publish both their research outcome in the form of a paper and their research workflows, software and data so that other researchers can reproduce the findings without any further support still years later. Efficient and high-quality computational research requires skills beyond programming as well as the capacity for software maintenance. Inspired by a best-practice example from the Netherlands, we provide 15 recommendations for universities, research funders and the scientific community who wish to support the development of sustainable high-quality computational research in Germany. They relate to the training and support of researchers by universities and other research organizations and to research funding. Of particular importance are options for establishing institutional support by research software engineers who are employed in permanent positions, funding of research software as research infrastructure as well as approaches for increasing the scientific merit that is achieved by producing sustainable research software and providing reproducible research output.
    Description: Deutsche Forschungsgemeinschaft, Rundgespräch DO 737/22-1
    Description: report
    Language: English
    Type: doc-type:book
    Format: 10
    Location Call Number Expected Availability
    BibTip Others were also interested in ...
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...