3368 search results - page 190 / 674 » The Complexity of Query Reliability |
273
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ICDE
1999
IEEE
16 years 7 months ago
1999
IEEE
Range sum queries on data cubes are a powerful tool for analysis. A range sum query applies an aggregation operation (e.g., SUM) over all selected cells in a data cube, where the ...
201
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ICDT
2007
ACM
16 years 20 days ago
2007
ACM
Query containment is a fundamental problem of databases. Given two queries q1 and q2, it asks whether the set of answers to q1 is included in the set of answers to q2 for any datab...
198
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GLOBE
2009
Springer
15 years 11 months ago
2009
Springer
Skyline queries help users make intelligent decisions over complex data, where different and often conflicting criteria are considered. A challenging problem is to support skylin...
185
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FAW
2009
Springer
15 years 10 months ago
2009
Springer
Abstract. Computing the visibility polygon, VP, of a point in a polygonal scene, is a classical problem that has been studied extensively. In this paper, we consider the problem of...
225
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DBISP2P
2006
Springer
15 years 10 months ago
2006
Springer
Abstract. This paper addresses the problem of data placement, indexing, and querying large XML data repositories distributed over an existing P2P service infrastructure. Our archit...