8763 search results - page 392 / 1753 » Querying Database Knowledge |
170
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DEXAW
2002
IEEE
15 years 11 months ago
2002
IEEE
In this paper, we suggest that it should be possible to come closer to the Semantic Web goals by enhancing the ontology paradigm and, in particular, by supplementing the ‘tradit...
165
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SIGMOD
1995
ACM
15 years 10 months ago
1995
ACM
A number of execution strategies for parallel evaluation of multi-join queries have been proposed in the literature; their performance was evaluated by simulation. In this paper w...
175
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SIGMOD
2010
ACM
15 years 11 months ago
2010
ACM
Many advanced data management operations (e.g., incremental maintenance, trust assessment, debugging schema mappings, keyword search over databases, or query answering in probabil...
225
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FOCS
1998
IEEE
15 years 11 months ago
1998
IEEE
This paper deals with the evaluation of acyclic Boolean conjunctive queries in relational databases. By well-known results of Yannakakis [1981], this problem is solvable in polynom...
196
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DEXAW
2009
IEEE
16 years 1 months ago
2009
IEEE
One of the main limitations in using ontologies in modern information systems is due to the fact that the design and maintenance of ontologies is a complex activity that requires ...