3244 search results - page 267 / 649 » Extensions to Description Logics |
155
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AAAI
1998
15 years 8 months ago
1998
We consider computational issues in combining logical knowledge bases represented by their characteristic models; in particular, we study taking their logical intersection. We pre...
175
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JAIR
2006
15 years 6 months ago
2006
We study properties of programs with monotone and convex constraints. We extend to these formalisms concepts and results from normal logic programming. They include the notions of...
155
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CORR
2004
Springer
15 years 6 months ago
2004
Springer
In the 1970s Codd introduced the relational algebra, with operators selection, projection, union, difference and product, and showed that it is equivalent to first-order logic. In ...
175
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CORR
2011
Springer
15 years 1 months ago
2011
Springer
In [1], systems of weakening of intuitionistic negation logic called Zn and CZn were developed in the spirit of da Costa’s approach(c.f. [2]) by preserving, differently from da C...
158
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KSEM
2007
Springer
16 years 21 days ago
2007
Springer
Abstract. Description logics (DLs) are a well-known family of knowledge representation (KR) languages. The notation of DLs has the style of a variable-free first order predicate l...