589 search results - page 48 / 118 » Optimized Query Evaluation Using Cooperative Sorts |
157
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ICDE
1999
IEEE
15 years 11 months ago
1999
IEEE
We develop a data integration approach for the efficient evaluation of queries over autonomous source databases. The approach is based on some novel applications and extensions of...
CLEF
2005
Springer
15 years 3 months ago
2005
Springer
This paper reports results for the University of Maryland’s participation in CLEF-2005 Cross-Language Speech Retrieval track. Techniques that were tried include: (1) document ex...
WISE
2002
Springer
15 years 2 months ago
2002
Springer
We propose a new approach for the efficient evaluation of XPath expressions. This is important, since XPath is not only used as a simple, stand-alone query language, but is also ...
101
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SIGMOD
2004
ACM
15 years 10 months ago
2004
ACM
Existing SQL aggregate functions present important limitations to compute percentages. This article proposes two SQL aggregate functions to compute percentages addressing such lim...
ICDM
2008
IEEE
15 years 4 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 ...