2724 search results - page 190 / 545 » Optimizing Queries on Files |
225
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ICDE
2005
IEEE
16 years 5 months ago
2005
IEEE
Vertical partitioning is a well-known technique for optimizing query performance in relational databases. An extreme form of this technique, which we call vectorization, is to sto...
132
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DIAL
2004
IEEE
15 years 7 months ago
2004
IEEE
A great number of documents are scanned and archived in the form of digital images in digital libraries, to make them available and accessible in the Internet. Information retriev...
113
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IIS
2004
15 years 5 months ago
2004
Estimating the result size of a join is an important query optimization problem as it determines the choice of a good query evaluation strategy. Yet, there are few efficient techni...
122
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COLING
2010
14 years 10 months ago
2010
This paper presents a novel method for acquiring a set of query patterns to retrieve documents containing important information about an entity. Given an existing Wikipedia catego...
111
Voted
ICDT
2005
ACM
15 years 9 months ago
2005
ACM
In recent years wavelets were shown to be effective data synopses. We are concerned with the problem of finding efficiently wavelet synopses for massive data sets, in situations...