Search (87 results, page 1 of 5)

Dobrev, P.; Kalaydjiev, O.; Angelova, G.: From conceptual structures to semantic interoperability of content (2007) 0.03

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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
Year: 2007

Zeng, Q.; Yu, M.; Yu, W.; Xiong, J.; Shi, Y.; Jiang, M.: Faceted hierarchy : a new graph type to organize scientific concepts and a construction method (2019) 0.02

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Content: Vgl.: https%3A%2F%2Faclanthology.org%2FD19-5317.pdf&usg=AOvVaw0ZZFyq5wWTtNTvNkrvjlGA.

Kless, D.: Erstellung eines allgemeinen Standards zur Wissensorganisation : Nutzen, Möglichkeiten, Herausforderungen, Wege (2010) 0.02
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Abstract

Zur Organisation und zum besseren Auffinden von Wissen werden häufig verschiedene Typen von Vokabularen verwendet. Aufgrund ihres Ursprungs in unterschiedlichen Communities werden die Vokabulare mit unterschiedlicher Terminologie sowie jeweils eigenen Methoden und Werkzeugen beschrieben und sind, wenn überhaupt, unterschiedlich stark und mit unterschiedlichem Fokus standardisiert. Um dieser Entwicklung zu entgegnen, müssen zum einen die Standards für die verschiedenen Vokabulartypen (weiter-)entwickelt werden und dabei auf gemeinsame, heute allgemein anerkannte Modellierungssprachen (z.B. UML) und XML-basierte Auszeichnungssprachen zurückgreifen. Zum anderen ist ein Meta-Standard nötig, der die Terminologie der verschiedenen Communities aufeinander abbildet und die Vokabulare vergleichbar macht. Dies würde nicht nur die qualifizierte Auswahl eines Vokabulartyps ermöglichen, sondern auch deren gegenseitiges Abbilden (Mappen) und allgemein der Wiederverwendung von Vokabularen nutzen. In Ansätzen wurde diese Strategie im jüngst veröffentlichten britischen Standard BS 8723 verfolgt, dessen Schwerpunkt (weiter) auf Thesauri liegt, der jedoch auch explizit Bezug zu anderen Vokabularen nimmt. Die im April 2007 begonnene Revision des Standards als internationale ISO-Norm 25964 erlaubt weitere, wenn auch vielleicht kleine Schritte hin zu einer langfristigen Vision von allgemeingültigen Standards zur Wissensorganisation.

Source

Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly

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
Year: 2007

Boteram, F.: Semantische Relationen in Dokumentationssprachen : vom Thesaurus zum semantischen Netz (2010) 0.02

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Date: 2. 3.2013 12:29:05
Source: Wissensspeicher in digitalen Räumen: Nachhaltigkeit - Verfügbarkeit - semantische Interoperabilität. Proceedings der 11. Tagung der Deutschen Sektion der Internationalen Gesellschaft für Wissensorganisation, Konstanz, 20. bis 22. Februar 2008. Hrsg.: J. Sieglerschmidt u. H.P.Ohly

Bloehdorn, S.; Cimiano, P.; Duke, A.; Haase, P.; Heizmann, J.; Thurlow, I.; Völker, J.: Ontology-based question answering for digital libraries (2007) 0.02

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Source: Research and advanced technology for digital libraries : 11th European conference, ECDL 2007 / Budapest, Hungary, September 16-21, 2007, proceedings. Eds.: L. Kovacs et al
Year: 2007

Semenova, E.; Stricker, M.: ¬Eine Ontologie der Wissenschaftsdisziplinen : Entwicklung eines Instrumentariums für die Wissenskommunikation (2007) 0.02

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Source: Wissenschaftskommunikation der Zukunft (WissKom 2007) : 4. Konferenz der Zentralbibliothek Forschungszentrum Jülich : 6. - 8. November 2007 ; Beiträge und Poster / [WissKom 2007]. Forschungszentrum Jülich GmbH, Zentralbibliothek. Rafael Ball (Hrsg.). [Mit einem Festvortrag von Ernst Pöppel]
Year: 2007

Weller, K.; Peters, I.: Reconsidering relationships for knowledge representation (2007) 0.01

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Year: 2007

Lacasta, J.; Nogueras-Iso, J.; López-Pellicer, F.J.; Muro-Medrano, P.R.; Zarazaga-Soria, F.J.: ThManager : an open source tool for creating and visualizing SKOS (2007) 0.01

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Source: Information technology and libraries. 26(2007) no.3, S.39-51
Year: 2007

Fonseca, F.: ¬The double role of ontologies in information science research (2007) 0.01

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Source: Journal of the American Society for Information Science and Technology. 58(2007) no.6, S.786-793
Year: 2007

Park, J.-r.: Evolution of concept networks and implications for knowledge representation (2007) 0.01

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Source: Journal of documentation. 63(2007) no.6, S.963-983
Year: 2007

Hjoerland, B.: Semantics and knowledge organization (2007) 0.01

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Source: Annual review of information science and technology. 41(2007), S.367-405
Year: 2007

Pike, W.; Gahegan, M.: Beyond ontologies : toward situated representations of scientific knowledge (2007) 0.01

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Source: International journal of human-computer studies. 65(2007) no.7, S.674-688
Year: 2007

Hepp, M.; Bruijn, J. de: GenTax : a generic methodology for deriving OWL and RDF-S ontologies from hierarchical classifications, thesauri, and inconsistent taxonomies (2007) 0.01

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Source: Proceedings of the 4th European Semantic Web Conference (ESWC 2007), June 3-7, Innsbruck, Austria
Year: 2007

Zhang, L.; Liu, Q.L.; Zhang, J.; Wang, H.F.; Pan, Y.; Yu, Y.: Semplore: an IR approach to scalable hybrid query of Semantic Web data (2007) 0.01

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Year: 2007

Schmitz-Esser, W.: Formalizing terminology-based knowledge for an ontology independently of a particular language (2008) 0.01
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Abstract

Last word ontological thought and practice is exemplified on an axiomatic framework [a model for an Integrative Cross-Language Ontology (ICLO), cf. Poli, R., Schmitz-Esser, W., forthcoming 2007] that is highly general, based on natural language, multilingual, can be implemented as topic maps and may be openly enhanced by software available for particular languages. Basics of ontological modelling, conditions for construction and maintenance, and the most salient points in application are addressed, such as cross-language text mining and knowledge generation. The rationale is to open the eyes for the tremendous potential of terminology-based ontologies for principled Knowledge Organization and the interchange and reuse of formalized knowledge.
Girju, R.; Beamer, B.; Rozovskaya, A.; Fister, A.; Bhat, S.: ¬A knowledge-rich approach to identifying semantic relations between nominals (2010) 0.01
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Abstract

This paper describes a state-of-the-art supervised, knowledge-intensive approach to the automatic identification of semantic relations between nominals in English sentences. The system employs a combination of rich and varied sets of new and previously used lexical, syntactic, and semantic features extracted from various knowledge sources such as WordNet and additional annotated corpora. The system ranked first at the third most popular SemEval 2007 Task - Classification of Semantic Relations between Nominals and achieved an F-measure of 72.4% and an accuracy of 76.3%. We also show that some semantic relations are better suited for WordNet-based models than other relations. Additionally, we make a distinction between out-of-context (regular) examples and those that require sentence context for relation identification and show that contextual data are important for the performance of a noun-noun semantic parser. Finally, learning curves show that the task difficulty varies across relations and that our learned WordNet-based representation is highly accurate so the performance results suggest the upper bound on what this representation can do.
Öttl, S.; Streiff, D.; Stettler, N.; Studer, M.: Aufbau einer Testumgebung zur Ermittlung signifikanter Parameter bei der Ontologieabfrage (2010) 0.01
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Abstract

Der Einsatz von semantischen Technologien ist mittlerweile ein etabliertes Mittel zur Optimierung von Information-Retrieval-Systemen. Obwohl der Einsatz von Ontologien für verschiedene Anwendungsbereiche wie beispielsweise zur Query-Expansion (Bhogal et al. 2007), zur Strukturierung von Benutzeroberflächen bzw. zur Dialoggestaltung (z. B. Garcia & Sicilia 2003; Liu et al. 2005; Lopez et al. 2006; Paulheim 2009; Paulheim & Probst 2010), in Recommendersystemen (z. B. Taehee et al. 2006; Cantador et al. 2008; Middleton et al. 2001; Middleton et al. 2009) usw. rege erforscht wird, gibt es noch kaum Bestrebungen, die einzelnen Abfragemethodiken für Ontologien systematisch zu untersuchen. Bei der Abfrage von Ontologien geht es in erster Linie darum, Zusammenhänge zwischen Begriffen zu ermitteln, indem hierarchische (Classes und Individuals), semantische (Object Properties) und ergänzende (Datatype Properties) Beziehungen abgefragt oder logische Verknüpfungen abgeleitet werden. Hierbei werden sogenannte Reasoner für die Ableitungen und als Abfragesprache SPARQL (seltener auch XPath) eingesetzt. Ein weiterer, weniger oft eingesetzter, vielversprechender Ansatz findet sich bei Hoser et al. (2006) und Weng & Chang (2008), die Techniken der Sozialen Netzwerkanalyse zur Auswertung von Ontologien miteinsetzen (Semantic Network Analysis). Um die Abfrage von Ontologien sowie Kombinationen der unterschiedlichen Abfragemöglichkeiten systematisch untersuchen zu können, wurde am SII eine entsprechende Testumgebung entwickelt, die in diesem Beitrag genauer vorgestellt werden soll.
Djioua, B.; Desclés, J.-P.; Alrahabi, M.: Searching and mining with semantic categories (2012) 0.01
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Abstract

A new model is proposed to retrieve information by building automatically a semantic metatext structure for texts that allow searching and extracting discourse and semantic information according to certain linguistic categorizations. This paper presents approaches for searching and mining full text with semantic categories. The model is built up from two engines: The first one, called EXCOM (Djioua et al., 2006; Alrahabi, 2010), is an automatic system for text annotation, related to discourse and semantic maps, which are specification of general linguistic ontologies founded on the Applicative and Cognitive Grammar. The annotation layer uses a linguistic method called Contextual Exploration, which handles the polysemic values of a term in texts. Several 'semantic maps' underlying 'point of views' for text mining guide this automatic annotation process. The second engine uses semantic annotated texts, produced previously in order to create a semantic inverted index, which is able to retrieve relevant documents for queries associated with discourse and semantic categories such as definition, quotation, causality, relations between concepts, etc. (Djioua & Desclés, 2007). This semantic indexation process builds a metatext layer for textual contents. Some data and linguistic rules sets as well as the general architecture that extend third-party software are expressed as supplementary information.

Waard, A. de; Fluit, C.; Harmelen, F. van: Drug Ontology Project for Elsevier (DOPE) (2007) 0.01

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Year: 2007

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