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IIWAS
2004
13 years 11 months ago
Ontology-Based Query Refinement for Multimedia Meta Objects
Abstract: To enable efficient access to multimedia content, the media data has to be augmented by semantic metadata and functionality. The semantic representation has to be integra...
Sonja Zillner, Werner Winiwarter
SEBD
2007
114views Database» more  SEBD 2007»
13 years 11 months ago
A New Type of Metadata for Querying Data Integration Systems
Research on data integration has provided languages and systems able to guarantee an integrated intensional representation of a given set of data sources. A significant limitation...
Sonia Bergamaschi, Francesco Guerra, Mirko Orsini,...
IJCAI
2003
13 years 11 months ago
Query rewriting and answering under constraints in data integration systems
In this paper we address the problem of query answering and rewriting in global-as-view data integration systems, when key and inclusion dependencies are expressed on the global i...
Andrea Calì, Domenico Lembo, Riccardo Rosat...
JODL
2000
114views more  JODL 2000»
13 years 9 months ago
Integrating ontologies and thesauri for RDF schema creation and metadata querying
In this paper we present a new approach for building metadata schemas by integrating existing ontologies and structured vocabularies (thesauri). This integration is based on the s...
Bernd Amann, Irini Fundulaki, Michel Scholl
ESWS
2008
Springer
13 years 12 months ago
xOperator - An Extensible Semantic Agent for Instant Messaging Networks
Instant Messaging is in addition to Web and Email the most popular service on the Internet. With xOperator we demonstrate the implementation of a strategy which deeply integrates I...
Sebastian Dietzold, Jörg Unbehauen, Söre...