2223 search results - page 57 / 445 » Query Optimization in an OODBMS |
SIGMOD
2003
ACM
15 years 12 months ago
2003
ACM
Decision-support applications generate queries with complex predicates. We show how the factorization of complex query expressions exposes significant opportunities for exploiting...
112
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CIKM
2005
Springer
15 years 5 months ago
2005
Springer
In this paper, we propose a new strategy for optimizing the placement of bin boundaries to minimize the cost of query evaluation using bitmap indices with binning. For attributes ...
SSD
2001
Springer
15 years 4 months ago
2001
Springer
In this paper we introduce the notion of constrained nearest neighbor queries (CNN) and propose a series of methods to answer them. This class of queries can be thought of as neare...
196
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SIGIR
2011
ACM
14 years 2 months ago
2011
ACM
Large search engines process thousands of queries per second over billions of documents, making query processing a major performance bottleneck. An important class of optimization...
103
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PODS
2000
ACM
15 years 4 months ago
2000
ACM
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...