265 search results - page 50 / 53 » Logical Queries over Views: Decidability and Expressiveness |
101
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EDBT
1998
ACM
15 years 2 months ago
1998
ACM
Abstract. HySpirit is a retrieval engine for hypermedia retrieval integrating concepts from information retrieval (IR) and deductive databases. The logical view on IR models retrie...
158
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VLDB
2007
ACM
15 years 10 months ago
2007
ACM
We consider systems for data sharing among heterogeneous peers related by a network of schema mappings. Each peer has a locally controlled and edited database instance, but wants ...
97
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EON
2003
14 years 11 months ago
2003
In this paper we describe Racer, which can be considered as a core inference engine for the semantic web. The Racer inference server offers two APIs that are already used by at le...
LACL
2001
Springer
15 years 2 months ago
2001
Springer
In categorial systems with a fixed structural component, the learning problem comes down to finding the solution for a set of typeassignment equations. A hard-wired structural co...
105
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WISE
2005
Springer
15 years 3 months ago
2005
Springer
Abstract. Approximation has been identified as a potential way of reducing the complexity of logical reasoning. Here we explore approximation for speeding up instance retrieval in...