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128
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SIGMOD
2002
ACM
16 years 2 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
115
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SIGMOD
2001
ACM
16 years 2 months ago
2001
ACM
Estimating the result size of complex queries that involve selection on multiple attributes and the join of several relations is a difficult but fundamental task in database query...
137
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SIGMOD
2001
ACM
16 years 2 months ago
2001
ACM
Virtually all proposals for querying XML include a class of query we term "containment queries". It is also clear that in the foreseeable future, a substantial amount of...
126
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PODS
2008
ACM
16 years 2 months ago
2008
ACM
A fundamental problem in distributed computation is the distributed evaluation of functions. The goal is to determine the value of a function over a set of distributed inputs, in ...
120
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EDBT
2004
ACM
16 years 2 months ago
2004
ACM
To effectively support today's global economy, database systems need to store and manipulate text data in multiple languages simultaneously. Current database systems do suppor...