2217 search results - page 69 / 444 » Rank-aware Query Optimization |
108
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FOCS
2006
IEEE
15 years 8 months ago
2006
IEEE
We present an algorithm for the c-approximate nearest neighbor problem in a d-dimensional Euclidean space, achieving query time of O(dn1/c2 +o(1) ) and space O(dn + n1+1/c2 +o(1) ...
101
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BTW
2003
Springer
15 years 7 months ago
2003
Springer
: Due to the ever increasing impacts of globalization, people will/have to work on data which is distributed all around the world [LKK+ 97]. Query processing on the corresponding d...
133
Voted
SSDBM
2008
IEEE
15 years 8 months ago
2008
IEEE
Increasingly, many data sources appear as online databases, hidden behind query forms, thus forming what is referred to as the deep web. It is desirable to have systems that can pr...
106
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FGCS
2000
15 years 2 months ago
2000
This paper focuses on parallel query optimization. We consider the operator problem and introduce a new class of execution strategies called Linear-Oriented Bushy Trees (LBTs). Co...
142
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ICDE
2010
IEEE
15 years 9 months ago
2010
IEEE
Abstract— Developing a full-fledged cost-based XQuery optimizer is a fairly complex task. Nowadays, there is little knowledge concerning suitable cost formulae and optimization ...