Search (53 results, page 1 of 3)

  • × year_i:[2000 TO 2010}
  • × theme_ss:"Wissensrepräsentation"
  1. Stojanovic, N.: Ontology-based Information Retrieval : methods and tools for cooperative query answering (2005) 0.12 
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    Content
    Vgl.: http%3A%2F%2Fdigbib.ubka.uni-karlsruhe.de%2Fvolltexte%2Fdocuments%2F1627&ei=tAtYUYrBNoHKtQb3l4GYBw&usg=AFQjCNHeaxKkKU3-u54LWxMNYGXaaDLCGw&sig2=8WykXWQoDKjDSdGtAakH2Q&bvm=bv.44442042,d.Yms.
    Date
    31. 3.2013 15:20:28
  2. Harbig, D.; Schneider, R.: Ontology Learning im Rahmen von MyShelf (2006) 0.02 
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    Abstract
    Der vorliegende Artikel befasst sich mit maschinellem Lernen von Ontologien. Es werden verschiedene Ansätze zum Ontology Learning vorgestellt. Der Fokus liegt auf dem Einsatz maschineller Lernalgorithmen zum automatischen Erwerb von Ontologien für das virtuelle Bibliotheksregal MyShelf. Dieses bietet Benutzern bei der Recherche durch Ontology Switching einen flexibleren Zugang zu Informationsbeständen. Basierend auf Textkorpora wurden Lerntechniken angewandt, um deren Potential für die Erstellung von Ontologien zu überprüfen.
  3. Scheir, P.; Pammer, V.; Lindstaedt, S.N.: Information retrieval on the Semantic Web : does it exist? (2007) 0.02 
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    Source
    Lernen - Wissen - Adaption : workshop proceedings / LWA 2007, Halle, September 2007. Martin Luther University Halle-Wittenberg, Institute for Informatics, Databases and Information Systems. Hrsg.: Alexander Hinneburg
  4. Beierle, C.; Kern-Isberner, G.: Methoden wissensbasierter Systeme : Grundlagen, Algorithmen, Anwendungen (2008) 0.02 
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    Abstract
    Dieses Buch präsentiert ein breites Spektrum aktueller Methoden zur Repräsentation und Verarbeitung (un)sicheren Wissens in maschinellen Systemen in didaktisch aufbereiteter Form. Neben symbolischen Ansätzen des nichtmonotonen Schließens (Default-Logik, hier konstruktiv und leicht verständlich mittels sog. Default-Bäume realisiert) werden auch ausführlich quantitative Methoden wie z.B. probabilistische Markov- und Bayes-Netze vorgestellt. Weitere Abschnitte beschäftigen sich mit Wissensdynamik (Truth Maintenance-Systeme), Aktionen und Planen, maschinellem Lernen, Data Mining und fallbasiertem Schließen.In einem vertieften Querschnitt werden zentrale alternative Ansätze einer logikbasierten Wissensmodellierung ausführlich behandelt. Detailliert beschriebene Algorithmen geben dem Praktiker nützliche Hinweise zur Anwendung der vorgestellten Ansätze an die Hand, während fundiertes Hintergrundwissen ein tieferes Verständnis für die Besonderheiten der einzelnen Methoden vermittelt . Mit einer weitgehend vollständigen Darstellung des Stoffes und zahlreichen, in den Text integrierten Aufgaben ist das Buch für ein Selbststudium konzipiert, eignet sich aber gleichermaßen für eine entsprechende Vorlesung. Im Online-Service zu diesem Buch werden u.a. ausführliche Lösungshinweise zu allen Aufgaben des Buches angeboten.Zahlreiche Beispiele mit medizinischem, biologischem, wirtschaftlichem und technischem Hintergrund illustrieren konkrete Anwendungsszenarien. Von namhaften Professoren empfohlen: State-of-the-Art bietet das Buch zu diesem klassischen Bereich der Informatik. Die wesentlichen Methoden wissensbasierter Systeme werden verständlich und anschaulich dargestellt. Repräsentation und Verarbeitung sicheren und unsicheren Wissens in maschinellen Systemen stehen dabei im Mittelpunkt. In der vierten, verbesserten Auflage wurde die Anzahl der motivierenden Selbsttestaufgaben mit aktuellem Praxisbezug nochmals erweitert. Ein Online-Service mit ausführlichen Musterlösungen erleichtert das Lernen.
  5. Best Practice Recipes for Publishing RDF Vocabularies (2008) 0.01 
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    Date
    14. 8.2011 14:29:06
    Issue
    W3C Working Group Note 28 August 2008.
  6. Definition of the CIDOC Conceptual Reference Model (2003) 0.01 
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    Date
    6. 8.2010 14:22:28
  7. Weller, K.: Kooperativer Ontologieaufbau (2006) 0.00 
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    Source
    Content. 28. Online-Tagung der DGI, 58. Jahrestagung der DGI, Proceedings. Hrsg.: M. Ockenfeld
  8. Hinkelmann, K.: Ontopia Omnigator : ein Werkzeug zur Einführung in Topic Maps (20xx) 0.00 
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    Date
    4. 9.2011 12:29:09
  9. Griffiths, T.L.; Steyvers, M.: ¬A probabilistic approach to semantic representation (2002) 0.00 
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    Date
    29. 6.2015 14:55:01
    29. 6.2015 16:09:05
  10. Tudhope, D.; Hodge, G.: Terminology registries (2007) 0.00 
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    Date
    26.12.2011 13:22:07
  11. Haller, S.H.M.: Mappingverfahren zur Wissensorganisation (2002) 0.00 
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    Date
    30. 5.2010 16:22:35
  12. Broughton, V.: Facet analysis as a fundamental theory for structuring subject organization tools (2007) 0.00 
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    Date
    26.12.2011 13:21:29
  13. Mustafa El Hadi, W.: Terminologies, ontologies and information access (2006) 0.00 
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    Date
    29. 2.2008 16:25:23
  14. Schubert, C.; Kinkeldey, C.; Reich, H.: Handbuch Datenbankanwendung zur Wissensrepräsentation im Verbundprojekt DeCOVER (2006) 0.00 
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    Date
    29. 1.2011 18:45:23
  15. Synak, M.; Dabrowski, M.; Kruk, S.R.: Semantic Web and ontologies (2009) 0.00 
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    Date
    31. 7.2010 16:58:22
  16. OWL Web Ontology Language Test Cases (2004) 0.00 
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    Date
    14. 8.2011 13:33:22
  17. Bean, C.A.: Hierarchical relationships used in mapping between knowledge structures (2006) 0.00 
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    Abstract
    User-designated Broader-Narrower Term pairs were analyzed to better characterize the nature and structure of the relationships between the pair members, previously determined by experts to be hierarchical in nature. Semantic analysis revealed that almost three-quarters (72%) of the term pairs were characterized as is-a (-kind-of) relationships and the rest (28%) as part-whole relationships. Four basic patterns of syntactic specification were observed. Implications of the findings for mapping strategies are discussed.
  18. Bosch, M.: Ontologies, different reasoning strategies, different logics, different kinds of knowledge representation : working together (2006) 0.00 
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    Date
    6. 1.1997 18:30:28
  19. Pepper, S.: ¬The TAO of topic maps : finding the way in the age of infoglut (2002) 0.00 
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    Date
    4. 9.2011 12:33:28
  20. Assem, M. van; Menken, M.R.; Schreiber, G.; Wielemaker, J.; Wielinga, B.: ¬A method for converting thesauri to RDF/OWL (2004) 0.00 
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    Date
    29. 7.2011 14:44:56

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