620 search results - page 68 / 124 » Algorithms for Rewriting Aggregate Queries Using Views |
151
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EWSN
2004
Springer
16 years 3 months ago
2004
Springer
The efficient subdivision of a sensor network into uniform, mostly non-overlapping clusters of physically close nodes is an important building block in the design of efficient uppe...
132
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WWW
2001
ACM
16 years 4 months ago
2001
ACM
In response to a query a search engine returns a ranked list of documents. If the query is on a popular topic (i.e., it matches many documents) then the returned list is usually t...
219
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SIGMOD
2006
ACM
16 years 4 months ago
2006
ACM
There has been a great deal of interest in the past few years on ranking of results of queries on structured databases, including work on probabilistic information retrieval, rank...
APPROX
2004
Springer
15 years 9 months ago
2004
Springer
Abstract. Motivated by an open problem recently suggested by Goldreich et al., we study truthful implementations of a random binary function supporting compound XOR queries over su...
183
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ICDT
2010
ACM
15 years 7 months ago
2010
ACM
Stochastic context-free grammars (SCFGs) have long been recognized as useful for a large variety of tasks including natural language processing, morphological parsing, speech reco...