2217 search results - page 239 / 444 » Rank-aware Query Optimization |
133
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COCO
2004
Springer
15 years 12 months ago
2004
Springer
We consider the problem of testing bipartiteness in the adjacency matrix model. The best known algorithm, due to Alon and Krivelevich, distinguishes between bipartite graphs and g...
203
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PVLDB
2008
15 years 6 months ago
2008
We propose EndoScope, a software monitoring framework that allows users to pose declarative queries that monitor the state and performance of running programs. Unlike most existin...
214
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SIGIR
2011
ACM
14 years 9 months ago
2011
ACM
Pseudo-relevance feedback has proven effective for improving the average retrieval performance. Unfortunately, many experiments have shown that although pseudo-relevance feedback...
156
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SIGMOD
1996
ACM
15 years 10 months ago
1996
ACM
Magic sets rewriting is a well-known optimization heuristic for complex decision-support queries. There can be many variants of this rewriting even for a single query, which diffe...
168
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FUIN
2006
15 years 6 months ago
2006
In this paper we deal with the problem of finding an optimal query execution plan in database systems. We improve the analysis of a polynomial-time approximation algorithm due to M...