Search (57 results, page 2 of 3)

  • × theme_ss:"Wissensrepräsentation"
  • × year_i:[2000 TO 2010}
  1. Stollberg, M.: Ontologiebasierte Wissensmodellierung : Verwendung als semantischer Grundbaustein des Semantic Web (2002) 0.01 
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    Abstract
    In Kapitel A werden die Grundlagen von Ontologien als Verfahren der Wissensmodellierung erarbeitet. Dazu wird zunächst die definitorische Erfassung von Ontologien erläutert. Zur Erlangung eines fundierten Verständnisses von Wissensmodellierung und der Besonderheiten ontologiebasierter Verfahren ist die Eingliederung dieser in den relevanten wissenschaftlichen Kontext erforderlich. Die in diesem Zusammenhang betrachtete Art der Wissensmodellierung dient vornehmlich als konzeptionelle Grundlage für die Erstellung wissensverarbeitender Computersysteme. Die Entwicklung derartiger Systeme ist das Hauptanliegen der Künstlichen Intelligenz, weshalb eine Positionierung ontologiebasierter Verfahren in derselben vorgenommen wird. Dabei sind vor allem jene Ansätze interessant, auf denen ontologiebasierte Verfahren aufbauen. Zunächst werden daher die grundlegenden theoretischen Aspekte der Wissensrepräsentation erläutert und anschließend daran die Bedeutung von Ontologien im Knowledge Engineering aufgezeigt, um den Verwendungskontext derartiger Verfahren der Wissensmodellierung zu verdeutlichen. Aufbauend darauf werden die spezifischen Eigenschaften ontologiebasierter Verfahren der Wissensmodellierung erörtert, wodurch ein grundlegendes Verständnis dieser Methodik erreicht werden soll.
  2. Synak, M.; Dabrowski, M.; Kruk, S.R.: Semantic Web and ontologies (2009) 0.01 
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    Date
    31. 7.2010 16:58:22
  3. OWL Web Ontology Language Test Cases (2004) 0.01 
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    Date
    14. 8.2011 13:33:22
  4. Kottmann, N.; Studer, T.: Improving semantic query answering (2006) 0.00 
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    Abstract
    The retrieval problem is one of the main reasoning tasks for knowledge base systems. Given a knowledge base K and a concept C, the retrieval problem consists of finding all individuals a for which K logically entails C(a). We present an approach to answer retrieval queries over (a restriction of) OWL ontologies. Our solution is based on reducing the retrieval problem to a problem of evaluating an SQL query over a database constructed from the original knowledge base. We provide complete answers to retrieval problems. Still, our system performs very well as is shown by a standard benchmark.
  5. Smolnik, S.; Nastansky, L.: K-Discovery : Identifikation von verteilten Wissensstrukturen in einer prozessorientierten Groupware-Umgebung (2004) 0.00 
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    Abstract
    Verschiedene Szenarien in Groupware-basierten Umgebungen verdeutlichen die Probleme, Wissensstrukturen im Allgemeinen und organisationale Wissensstrukturen im Speziellen zu identifizieren. Durch den Einsatz von Topic Maps, definiert im ISOStandard "ISO/IEC 13250 Topic Maps", in Groupware-basierten organisationalen Wissensbasen wird es möglich, die Lücke zwischen Wissen und Information zu schließen. In diesem Beitrag werden die Ziele des Forschungsprojektes K-Discovery - der Einsatz von Topic Maps in Groupware-basierten Umgebungen - vorgestellt. Aufbauend auf diesen Zielen wird ein Architekturmodell sowie zwei Implementationsansätze präsentiert, in dem durch den Einsatz von Topic Maps in einer prozessorientierten GroupwareUmgebung Wissensstrukturen generiert werden. Der Beitrag schließt mit einigen abschließenden Ausführungen.
    Object
    K-Discovery
  6. Priss, U.: Faceted information representation (2000) 0.00 
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    Date
    22. 1.2016 17:47:06
  7. Loehrlein, A.; Jacob, E.K.; Lee, S.; Yang, K.: Development of heuristics in a hybrid approach to faceted classification (2006) 0.00 
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    Source
    Knowledge organization for a global learning society: Proceedings of the 9th International ISKO Conference, 4-7 July 2006, Vienna, Austria. Hrsg.: G. Budin, C. Swertz u. K. Mitgutsch
  8. Definition of the CIDOC Conceptual Reference Model (2003) 0.00 
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    Date
    6. 8.2010 14:22:28
  9. Gendt, M. van; Isaac, I.; Meij, L. van der; Schlobach, S.: Semantic Web techniques for multiple views on heterogeneous collections : a case study (2006) 0.00 
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    Source
    Research and advanced technology for digital libraries : 10th European conference, proceedings / ECDL 2006, Alicante, Spain, September 17 - 22, 2006
  10. Renear, A.H.; Wickett, K.M.; Urban, R.J.; Dubin, D.; Shreeves, S.L.: Collection/item metadata relationships (2008) 0.00 
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    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  11. Bittner, T.; Donnelly, M.; Winter, S.: Ontology and semantic interoperability (2006) 0.00 
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    Date
    3.12.2016 18:39:22
  12. Beppler, F.D.; Fonseca, F.T.; Pacheco, R.C.S.: Hermeneus: an architecture for an ontology-enabled information retrieval (2008) 0.00 
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    Date
    28.11.2016 12:43:22
  13. Zeng, M.L.; Fan, W.; Lin, X.: SKOS for an integrated vocabulary structure (2008) 0.00 
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    Abstract
    In order to transfer the Chinese Classified Thesaurus (CCT) into a machine-processable format and provide CCT-based Web services, a pilot study has been conducted in which a variety of selected CCT classes and mapped thesaurus entries are encoded with SKOS. OWL and RDFS are also used to encode the same contents for the purposes of feasibility and cost-benefit comparison. CCT is a collected effort led by the National Library of China. It is an integration of the national standards Chinese Library Classification (CLC) 4th edition and Chinese Thesaurus (CT). As a manually created mapping product, CCT provides for each of the classes the corresponding thesaurus terms, and vice versa. The coverage of CCT includes four major clusters: philosophy, social sciences and humanities, natural sciences and technologies, and general works. There are 22 main-classes, 52,992 sub-classes and divisions, 110,837 preferred thesaurus terms, 35,690 entry terms (non-preferred terms), and 59,738 pre-coordinated headings (Chinese Classified Thesaurus, 2005) Major challenges of encoding this large vocabulary comes from its integrated structure. CCT is a result of the combination of two structures (illustrated in Figure 1): a thesaurus that uses ISO-2788 standardized structure and a classification scheme that is basically enumerative, but provides some flexibility for several kinds of synthetic mechanisms Other challenges include the complex relationships caused by differences of granularities of two original schemes and their presentation with various levels of SKOS elements; as well as the diverse coordination of entries due to the use of auxiliary tables and pre-coordinated headings derived from combining classes, subdivisions, and thesaurus terms, which do not correspond to existing unique identifiers. The poster reports the progress, shares the sample SKOS entries, and summarizes problems identified during the SKOS encoding process. Although OWL Lite and OWL Full provide richer expressiveness, the cost-benefit issues and the final purposes of encoding CCT raise questions of using such approaches.
    Source
    Metadata for semantic and social applications : proceedings of the International Conference on Dublin Core and Metadata Applications, Berlin, 22 - 26 September 2008, DC 2008: Berlin, Germany / ed. by Jane Greenberg and Wolfgang Klas
  14. Baumer, C.; Reichenberger, K.: Business Semantics - Praxis und Perspektiven (2006) 0.00 
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  15. Thellefsen, M.: ¬The dynamics of information representation and knowledge mediation (2006) 0.00 
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    Source
    Knowledge organization for a global learning society: Proceedings of the 9th International ISKO Conference, 4-7 July 2006, Vienna, Austria. Hrsg.: G. Budin, C. Swertz u. K. Mitgutsch
  16. Mainz, I.; Weller, K.; Paulsen, I.; Mainz, D.; Kohl, J.; Haeseler, A. von: Ontoverse : collaborative ontology engineering for the life sciences (2008) 0.00 
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  17. Weller, K.; Peters, I.: Reconsidering relationships for knowledge representation (2007) 0.00 
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  18. Müller, T.: Wissensrepräsentation mit semantischen Netzen im Bereich Luftfahrt (2006) 0.00 
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    Date
    26. 9.2006 21:00:22
  19. Dobrev, P.; Kalaydjiev, O.; Angelova, G.: From conceptual structures to semantic interoperability of content (2007) 0.00 
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    Source
    Conceptual structures: knowledge architectures for smart applications: 15th International Conference on Conceptual Structures, ICCS 2007, Sheffield, UK, July 22 - 27, 2007 ; proceedings. Eds.: U. Priss u.a
  20. Baofu, P.: ¬The future of information architecture : conceiving a better way to understand taxonomy, network, and intelligence (2008) 0.00 
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    Classification
    BBV (FH K)
    GHBS
    BBV (FH K)

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