8 search results - page 1 / 2 » Query and Predicate Emptiness in Description Logics |
KR
2010
Springer
13 years 9 months ago
2010
Springer
Ontologies can be used to provide an enriched vocabulary for the formulation of queries over instance data. We identify query emptiness and predicate emptiness as two central reas...
EUSFLAT
2009
13 years 2 months ago
2009
This paper proposes an approach aimed at obviating empty answers for a family of conjunctive queries involving Boolean or fuzzy value constraints. Contrary to the approaches based ...
AAAI
2008
13 years 7 months ago
2008
In several applications of logic programming and Transaction Logic, such as, planning, trust management and independent Semantic Web Services, an action might produce incomplete f...
CADE
2000
Springer
13 years 9 months ago
2000
Springer
Abstract. While there has been a great deal of work on the development of reasoning algorithms for expressive description logics, in most cases only Tbox reasoning is considered. I...
CADE
2007
Springer
14 years 5 months ago
2007
Springer
The E-KRHyper system is a model generator and theorem prover for first-order logic with equality. It implements the new E-hyper tableau calculus, which integrates a superposition-b...