3225 search results - page 490 / 645 » Query Optimization by Stored Queries |
154
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COLT
2007
Springer
15 years 11 months ago
2007
Springer
We present a new class of problems, called resource-bounded information gathering for correlation clustering. Our goal is to perform correlation clustering under circumstances in w...
152
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CIKM
2005
Springer
15 years 11 months ago
2005
Springer
Accurately and efficiently estimating the number of distinct values for some attribute(s) or sets of attributes in a data set is of critical importance to many database operation...
144
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INFOVIS
2003
IEEE
15 years 11 months ago
2003
IEEE
The Informedia Digital Video Library user interface summarizes query results with a collage of representative keyframes. We present a user study in which keyframe occlusion caused...
234
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ICDE
2008
IEEE
16 years 7 months ago
2008
IEEE
Traditional approaches to rule-based information extraction (IE) have primarily been based on regular expression grammars. However, these grammar-based systems have difficulty scal...
259
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ICDE
2005
IEEE
16 years 7 months ago
2005
IEEE
Maintaining materialized views that have join conditions between arbitrary pairs of data sources possibly with cycles is critical for many applications. In this work, we model vie...