1091 search results - page 106 / 219 » Approximation in Databases |
140
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VLDB
2005
ACM
15 years 11 months ago
2005
ACM
We study the problem of computing waveletbased synopses for massive data sets in static and streaming environments. A compact representation of a data set is obtained after a thre...
181
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ADC
2003
Springer
15 years 11 months ago
2003
Springer
Selectivity estimation of queries not only provides useful information to the query processing optimization but also may give users a preview of processing results. In this paper,...
147
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SSDBM
2010
IEEE
15 years 11 months ago
2010
IEEE
Many applications require to determine the k-nearest neighbors for multiple query points simultaneously. This task is known as all-(k)-nearest-neighbor (AkNN) query. In this paper,...
133
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VLDB
1997
ACM
15 years 10 months ago
1997
ACM
The result size of a query that involves multiple attributes from the same relation depends on these attributes’ joint data distribution,i.e., the frequencies of all combination...
190
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VLDB
1990
ACM
15 years 10 months ago
1990
ACM
In several image applications, it is necessary to retrieve specific line segments born a potentially very large set. In this paper, we consider the problem of indexing straight li...