3005 search results - page 242 / 601 » Logical Information Systems: from Taxonomies to Logics |
194
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DBSEC
2006
15 years 8 months ago
2006
Abstract. Controlled Query Evaluation (CQE) offers a logical framework to prevent a user of a database from inadvertently gaining knowledge he is not allowed to know. By modeling t...
196
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JIKM
2008
15 years 6 months ago
2008
Expert systems (ESs) are complex information systems that are expensive to build and difficult to validate. Numerous knowledge representation strategies such as rules, semantic net...
181
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JNCA
2007
15 years 6 months ago
2007
Cooperation and autonomy are two antagonistic core variables of agent-based systems, and a key challenge in designing such systems is to balance these variables appropriately. Thi...
192
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IJSEKE
1998
15 years 6 months ago
1998
Managing scientific data is a challenging task, and many of the problems it presents have yet to be adequately solved. The Real-time Environmental Information Network and Analysi...
199
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DKE
2010
15 years 6 months ago
2010
We describe the Consistency Extractor System (ConsEx) that computes consistent answers to Datalog queries with negation posed to relational databases that may be inconsistent with...