1038 search results - page 118 / 208 » Space-Bounded Query Approximation |
134
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WEBDB
2005
Springer
15 years 10 months ago
2005
Springer
Querying document-centric XML collections with structure conditions improves retrieval precisions. The structures of such XML collections, however, are often too complex for users...
258
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ICDE
2007
IEEE
16 years 5 months ago
2007
IEEE
Keyword search is a familiar and potentially effective way to find information of interest that is "locked" inside relational databases. Current work has generally assum...
241
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SIGMOD
2006
ACM
16 years 4 months ago
2006
ACM
This paper introduces the Tuple Graph (TuG) synopses, a new class of data summaries that enable accurate selectivity estimates for complex relational queries. The proposed summari...
116
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WALCOM
2010
IEEE
15 years 11 months ago
2010
IEEE
We address a version of the set-cover problem where we do not know the sets initially (and hence referred to as covert) but we can query an element to find out which sets contain ...
124
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ICDM
2008
IEEE
15 years 11 months ago
2008
IEEE
Selecting promising queries is the key to effective active learning. In this paper, we investigate selection techniques for the task of learning an equivalence relation where the ...