1300 search results - page 220 / 260 » XML Query Processing and Optimization |
104
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PODS
2010
ACM
15 years 6 months ago
2010
ACM
We give the first optimal algorithm for estimating the number of distinct elements in a data stream, closing a long line of theoretical research on this problem begun by Flajolet...
122
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MOBICOM
2004
ACM
15 years 7 months ago
2004
ACM
In this paper we consider the problem of searching for a node or an object (i.e., piece of data, file, etc.) in a large network. Applications of this problem include searching fo...
107
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BMCBI
2008
15 years 1 months ago
2008
Background: Similarity inference, one of the main bioinformatics tasks, has to face an exponential growth of the biological data. A classical approach used to cope with this data ...
95
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ECCV
2004
Springer
16 years 3 months ago
2004
Springer
We propose a method for measuring the quality of a grouping result, based on the following observation: a better grouping result provides more information about the true, unknown g...
199
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ICDE
2008
IEEE
16 years 3 months ago
2008
IEEE
We study the problem of computing query results with confidence values in ULDBs: relational databases with uncertainty and lineage. ULDBs, which subsume probabilistic databases, o...