2867 search results - page 207 / 574 » Effectiveness of Index Expressions |
289
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ICDE
2007
IEEE
16 years 7 months ago
2007
IEEE
Estimating the selectivity of queries is a crucial problem in database systems. Virtually all database systems rely on the use of selectivity estimates to choose amongst the many ...
218
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ICPR
2008
IEEE
16 years 7 months ago
2008
IEEE
Usually changes in remote sensing images go along with the appearance or disappearance of some edges. In addition, pixels located along the edges are likely to weakly influenced b...
124
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ICPR
2006
IEEE
16 years 7 months ago
2006
IEEE
Extracting key-frames is the first step for efficient content-based indexing, browsing and retrieval of the video data in commercial movies. Most of the existing research deals wi...
142
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ICPR
2004
IEEE
16 years 7 months ago
2004
IEEE
We define a cluster to be characterized by regions of high density separated by regions that are sparse. By observing the downward closure property of density, the search for inte...
177
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WWW
2007
ACM
16 years 7 months ago
2007
ACM
In this paper, we describe an application, PubCloud that uses tag clouds for the summarization of results from queries over the PubMed database of biomedical literature. PubCloud ...