44 search results - page 4 / 9 » A Well-founded Semantics for Hybrid MKNF Knowledge Bases |
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IRCDL
2007
14 years 11 months ago
2007
Abstract— In this paper we suggest a new approach to represent text document collections, integrating background knowledge to improve clustering effectiveness. Background knowled...
CORR
2007
Springer
14 years 10 months ago
2007
Springer
Recently, there has been a lot of interest in the integration of Description Logics and rules on the Semantic Web. We define guarded hybrid knowledge bases (or g-hybrid knowledge...
KRDB
1994
14 years 11 months ago
1994
We propose an architecture for large-scale knowledge base systems based on database technologies and the three levels of semantic construct - frames, objects and relations. The in...
JCIT
2007
14 years 10 months ago
2007
Our fundamental objective is to tackle the problem faced in the field of information retrieval and classification in the current era of information overflow by proposing better an...
VLDB
1993
ACM
15 years 2 months ago
1993
ACM
The enforcement of semantic integrity constraints in data and knowledge bases constitutea a major performance bottleneck. Integrity constraint simplification methods aim at reduci...