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ECAI
2010
Springer
13 years 5 months ago
Tractable Reasoning with DL-Programs over Datalog-rewritable Description Logics
Abstract. The deployment of KR formalisms to the Web has created the need for formalisms that combine heterogeneous knowledge bases. Nonmonotonic dl-programs provide a loose integr...
Stijn Heymans, Thomas Eiter, Guohui Xiao
DLOG
2007
13 years 6 months ago
Exploiting Conjunctive Queries in Description Logic Programs
We present cq-programs, which enhance nonmonotonic description logics (dl-) programs by conjunctive queries (CQ) and union of conjunctive queries (UCQ) over Description Logics kno...
Thomas Eiter, Giovambattista Ianni, Thomas Krennwa...
DLOG
2006
13 years 6 months ago
Handling Imprecise Knowledge with Fuzzy Description Logic
Fuzzy Description Logics have been proposed in the literature as a way to represent and reason with vague and imprecise knowledge. Their decidability, the empirically tractable an...
Giorgos Stoilos, Giorgos B. Stamou, Jeff Z. Pan
DEXAW
2007
IEEE
160views Database» more  DEXAW 2007»
13 years 11 months ago
RDF and Logic: Reasoning and Extension
In this paper we explore embeddings of the various kinds of RDF entailment in F-Logic. We show that the embeddings of simple, RDF, and RDFS entailment, as well as a large fragment...
Jos de Bruijn, Stijn Heymans
DLOG
2008
13 years 6 months ago
Classifying Fuzzy Subsumption in Fuzzy-EL+
Abstract. Fuzzy Description Logics (f-DLs) have been proposed as extensions of classical Description Logics able to handle imprecise and vague knowledge. Although several extension...
Giorgos Stoilos, Giorgos B. Stamou, Jeff Z. Pan