2724 search results - page 237 / 545 » Optimizing Queries on Files |
128
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VLDB
2005
ACM
15 years 9 months ago
2005
ACM
Cost-based query optimizers need to estimate the selectivity of conjunctive predicates when comparing alternative query execution plans. To this end, advanced optimizers use multi...
153
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EDBT
2008
ACM
16 years 4 months ago
2008
ACM
Many systems such as Tukwila and YFilter combine automaton and algebra techniques to process queries over tokenized XML streams. Typically in this architecture, an automaton is fi...
149
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WEBI
2010
Springer
15 years 2 months ago
2010
Springer
Abstract--Expertise matching, aiming to find the alignment between experts and queries, is a common problem in many real applications such as conference paper-reviewer assignment, ...
162
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WINE
2007
Springer
15 years 10 months ago
2007
Springer
A context in sponsored search is additional information about a query, such as the user’s age, gender or location, that can change an advertisement’s relevance or an advertise...
147
Voted
CP
2009
Springer
15 years 11 months ago
2009
Springer
The problem of finding a collection of solutions to a combinatorial problem that is optimal in terms of an inter-solution objective function exists in many application settings. F...