2217 search results - page 209 / 444 » Rank-aware Query Optimization |
180
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ISCSCT
2008
IEEE
16 years 26 days ago
2008
IEEE
—Relevance feedback(RF) has been proved to be an effective way to improve the precision and recall of 3D model retrieval. However, the existing RF approaches do not consider whic...
154
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DBPL
2007
Springer
16 years 19 days ago
2007
Springer
The widespread adoption of XML has led to programming languages that support XML as a first class construct. In this paper, we present a method for analyzing and optimizing impera...
175
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COMPGEOM
2006
ACM
16 years 13 days ago
2006
ACM
This paper examines the computation of the Voronoi diagram of a set of ellipses in the Euclidean plane. We propose the first complete algorithms, under the exact computation para...
154
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VLDB
2004
ACM
15 years 11 months ago
2004
ACM
When query optimizers erroneously assume that database columns are statistically independent, they can underestimate the selectivities of conjunctive predicates by orders of magni...
205
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EDBT
2009
ACM
15 years 4 months ago
2009
ACM
In this work, we focus on managing scientific environmental data, which are measurement readings collected from wireless sensors. In environmental science applications, raw sensor...