6650 search results - page 528 / 1330 » Mutating database queries |
276
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PODS
2010
ACM
16 years 7 hour ago
2010
ACM
Cardinality estimation is the problem of estimating the number of tuples returned by a query; it is a fundamentally important task in data management, used in query optimization, ...
209
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PODS
2000
ACM
15 years 11 months ago
2000
ACM
We study the problem of auditing databases which support statistical sum queries to protect the security of sensitive information; we focus on the special case in which the sensit...
190
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SAC
2011
ACM
14 years 9 months ago
2011
ACM
Semantic caching augments cached data with a semantic description of the data. These semantic descriptions can be used to improve execution time for similar queries by retrieving ...
295
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VLDB
2008
ACM
16 years 7 months ago
2008
ACM
Besides traditional domains (e.g., resource allocation, data mining applications), algorithms for medoid computation and related problems will play an important role in numerous e...
186
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VLDB
2007
ACM
16 years 1 months ago
2007
ACM
The general problem of answering top-k queries can be modeled using lists of data items sorted by their local scores. The most efficient algorithm proposed so far for answering to...