2661 search results - page 276 / 533 » A Semantics for Abstraction |
174
Voted
PODS
2006
ACM
16 years 6 months ago
2006
ACM
The most acute information management challenges today stem from organizations relying on a large number of diverse, interrelated data sources, but having no means of managing the...
273
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VLDB
2001
ACM
16 years 7 months ago
2001
ACM
Abstract In this paper we present a mechanism for approximately translating Boolean query constraints across heterogeneous information sources. Achieving the best translation is ch...
271
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VLDB
2004
ACM
16 years 7 months ago
2004
ACM
Abstract. In dynamic environments like the Web, data sources may change not only their data but also their schemas, their semantics, and their query capabilities.When a mapping is ...
173
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PADL
2010
Springer
16 years 3 months ago
2010
Springer
Abstract. Ontologies and rules are usually loosely coupled in knowledge representation formalisms. In fact, ontologies use open-world reasoning while the leading semantics for rule...
191
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CIVR
2009
Springer
16 years 1 months ago
2009
Springer
Movies segmentation into semantically correlated units is a quite tedious task due to ”semantic gap”. Low-level features do not provide useful information about the semantical...