2228 search results - page 45 / 446 » A System for Semantic Query Optimization |
130
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VLDB
1999
ACM
15 years 7 months ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...
214
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ICDE
2008
IEEE
16 years 4 months ago
2008
IEEE
In this paper we address the problem of minimizing the response time of a multi-way join query using pipelined (inter-operator) parallelism, in a parallel or a distributed environ...
120
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OWLED
2008
15 years 4 months ago
2008
We study conjunctive query answering in the description logic EL, the core of the designated OWL2-EL profile of OWL2. In particular, we present an approach that allows the use of c...
121
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DGO
2003
15 years 4 months ago
2003
This paper describes a Web-based query system for semantically heterogeneous geospatial data. Our goal is to provide DBMS type query capabilities to a proposed statewide land info...
133
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CIVR
2006
Springer
15 years 6 months ago
2006
Springer
A combination of query-by-visual-example (QBVE) and semantic retrieval (SR), denoted as query-by-semantic-example (QBSE), is proposed. Images are labeled with respect to a vocabula...