4382 search results - page 502 / 877 » Query by Semantic Example |
138
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KRDB
1998
15 years 5 months ago
1998
We present a semantic caching approach for optimizing the performance of information mediators. A critical problem with information mediators, particularly those gathering and int...
143
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PVLDB
2008
15 years 4 months ago
2008
Data integration systems often provide a uniform query interface, called a mediated schema, to a multitude of data sources. To answer user queries, such systems employ a set of se...
128
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SMI
2005
IEEE
15 years 10 months ago
2005
IEEE
For time-dependent scalar fields, one is often interested in topology changes of contours in time. In this paper, we focus on describing how contours split and merge over a certa...
189
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SAS
1992
Springer
15 years 8 months ago
1992
Springer
Abstract Constraint logic programming (CLP) is a generalization of the pure logic programming paradigm, having similar model-theoretic, fixpoint and operational semantics [9]. Sinc...
151
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SWAP
2007
15 years 5 months ago
2007
We address the problem of reasoning with instances of heterogeneously formalized ontologies. Given a set of semantic mappings, reconciling conceptual and instance level heterogenei...