2599 search results - page 181 / 520 » An Operational Semantics for Knowledge Bases |
316
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AMW
2011
14 years 10 months ago
2011
Abstract. We consider the problem of checking equivalence of conjunctive queries with inequalities under bag (multiset) semantics. The problem is known to be decidable in pspace an...
343
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AMW
2011
14 years 10 months ago
2011
Subqueries are a poweful feature which allows to enforce reuse, composition, rewriting and optimization in a query language. In this paper we perform a comprehensive study of the i...
166
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COORDINATION
2007
Springer
16 years 17 days ago
2007
Springer
Recent advances in middleware technologies propose semantics-aware tuplespaces as an instrument for coping with the requirements of scalability, heterogeneity and dynamism arising ...
146
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SAC
2006
ACM
16 years 10 days ago
2006
ACM
In recent years, Web Services have become the key technology for building flexible and interoperable computing infrastructure. However, to realize the vision of a full-fletched ...
173
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CAISE
2004
Springer
15 years 11 months ago
2004
Springer
The Semantic Web vision aims to integrate and convert the vast amount of information available on the Internet into a machine-understandable network. The objective is to promote kn...