5954 search results - page 368 / 1191 » Querying Bi-level Information |
188
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CIKM
1999
Springer
15 years 11 months ago
1999
Springer
We present the architecture and a performance assessment of an extensible query optimizer written in Venus. Venus is a general-purpose active-database rule language embedded in C+...
185
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DASFAA
2009
IEEE
15 years 10 months ago
2009
IEEE
Abstract. Query expansion has received extensive attention in information retrieval community. Although semantic based query expansion appears to be promising in improving retrieva...
244
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DBISP2P
2006
Springer
15 years 10 months ago
2006
Springer
Abstract. This paper addresses the problem of data placement, indexing, and querying large XML data repositories distributed over an existing P2P service infrastructure. Our archit...
196
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WEBDB
2000
Springer
15 years 10 months ago
2000
Springer
Rewriting queries using views is a powerful technique that has applications in data integration, data warehousing and query optimization. Query rewriting in relational databases i...
209
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DOLAP
2005
ACM
15 years 8 months ago
2005
ACM
OLAP users heavily rely on visualization of query answers for their interactive analysis of massive amounts of data. Very often, these answers cannot be visualized entirely and th...