9683 search results - page 586 / 1937 » Predicting query performance |
179
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GEOINFORMATICA
2006
15 years 7 months ago
2006
Existing estimation approaches for spatial databases often rely on the assumption that data distribution in a small region is uniform, which seldom holds in practice. Moreover, the...
179
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SIGECOM
2008
ACM
15 years 7 months ago
2008
ACM
We consider the problem of query rewrites in the context of keyword advertisement. Given a three-layer graph consisting of queries, query rewrites, and the corresponding ads that ...
210
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DEBS
2008
ACM
15 years 9 months ago
2008
ACM
Several new Complex Event Processing (CEP) engines have been recently released, many of which are intended to be used in performance sensitive scenarios - like fraud detection, tr...
237
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FGCS
2007
15 years 7 months ago
2007
Abstract. E-Science Semantic Grids can often be thought of as dynamic collection of semantic subgrids where each subgrid is a collection of modest number of services that assembled...
249
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DASFAA
2009
IEEE
16 years 2 months ago
2009
IEEE
The rapidly increasing number of XML-related applications indicates a growing need for efficient, dynamic, and native XML support in database management systems (XDBMS). So far, bo...