333 search results - page 40 / 67 » Read-Once Functions and Query Evaluation in Probabilistic Da... |
122
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VLDB
2007
ACM
15 years 9 months ago
2007
ACM
A top-k query retrieves the k highest scoring tuples from a data set with respect to a scoring function defined on the attributes of a tuple. The efficient evaluation of top-k q...
221
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SIGMOD
2007
ACM
16 years 3 months ago
2007
ACM
An emerging challenge in modern distributed querying is to efficiently process multiple continuous aggregation queries simultaneously. Processing each query independently may be i...
125
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BMCBI
2008
15 years 3 months ago
2008
Background: Most non-coding RNA families exert their function by means of a conserved, common secondary structure. The Rfam data base contains more than five hundred structurally ...
161
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SIGMOD
2003
ACM
16 years 3 months ago
2003
ACM
The W3C XQuery language recommendation, based on a hierarchical and ordered document model, supports a wide variety of constructs and use cases. There is a diversity of approaches...
128
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SIGMOD
2001
ACM
16 years 3 months ago
2001
ACM
Users often need to optimize the selection of objects by appropriately weighting the importance of multiple object attributes. Such optimization problems appear often in operation...