735 search results - page 86 / 147 » Evaluating Probabilistic Queries over Imprecise Data |
PVLDB
2010
14 years 10 months ago
2010
We consider the problem of efficiently finding the top-k answers for join queries over web-accessible databases. Classical algorithms for finding top-k answers use branch-and-b...
196
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SIGMOD
2007
ACM
15 years 12 months ago
2007
ACM
Incomplete information arises naturally in numerous data management applications. Recently, several researchers have studied query processing in the context of incomplete informat...
CIKM
2005
Springer
15 years 5 months ago
2005
Springer
This paper presents an evaluation of evolved term-weighting schemes on short, medium and long TREC queries. A previously evolved global (collection-wide) term-weighting scheme is ...
SSDBM
2007
IEEE
15 years 6 months ago
2007
IEEE
There is a significant need for data integration capabilities in the scientific domain, which has manifested itself as products in the commercial world as well as academia. Howeve...
192
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ICDE
2005
IEEE
16 years 1 months ago
2005
IEEE
We address the problem of executing continuous multiway join queries in unpredictable and volatile environments. Our query class captures windowed join queries in data stream syst...