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» Aggregate queries over ontologies
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EKAW
2010
Springer
13 years 8 months ago
Ontology Engineering with Rough Concepts and Instances
A scenario in ontology development and its use is hypothesis testing, such as finding new subconcepts based on the data linked to the ontology. During such experimentation, knowle...
C. Maria Keet
VLDB
2007
ACM
126views Database» more  VLDB 2007»
14 years 10 months ago
SOR: A Practical System for Ontology Storage, Reasoning and Search
Ontology, an explicit specification of shared conceptualization, has been increasingly used to define formal data semantics and improve data reusability and interoperability in en...
Chen Wang, Jean-Sébastien Brunner, Jing Lu,...
BMCBI
2008
121views more  BMCBI 2008»
13 years 10 months ago
OntoDas - a tool for facilitating the construction of complex queries to the Gene Ontology
Background: Ontologies such as the Gene Ontology can enable the construction of complex queries over biological information in a conceptual way, however existing systems to do thi...
Kieran O'Neill, Alexander García Castro, An...
LREC
2010
237views Education» more  LREC 2010»
13 years 11 months ago
Flexible Ontology Population from Text: The OwlExporter
Ontology population from text is becoming increasingly important for NLP applications. Ontologies in OWL format provide for a standardized means of modeling, querying, and reasoni...
René Witte, Ninus Khamis, Juergen Rilling
GPC
2010
Springer
14 years 4 months ago
Distributed Island-Based Query Answering for Expressive Ontologies
Scalability of reasoning systems is one of the main criteria which will determine the success of Semantic Web systems in the future. The focus of recent work is either on (a) expre...
Sebastian Wandelt, Ralf Möller