2853 search results - page 268 / 571 » On the Efficiency of Provenance Queries |
157
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ICIP
1998
IEEE
16 years 8 months ago
1998
IEEE
In this paper, an efficient video content representation is proposed using optimal extraction of characteristic frames and scenes. This representation, apart from providing browsi...
311
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GIS
2006
ACM
16 years 7 months ago
2006
ACM
Given a query point and a collection of spatial features, a multi-type nearest neighbor (MTNN) query finds the shortest tour for the query point such that only one instance of eac...
283
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VLDB
2002
ACM
16 years 6 months ago
2002
ACM
: Purpose ? Tree pattern is at the core of XML queries. The tree patterns in XML queries typically contain redundancies, especially when broad integrity constraints (ICs) are prese...
267
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VLDB
2004
ACM
16 years 6 months ago
2004
ACM
Ranking queries produce results that are ordered on some computed score. Typically, these queries involve joins, where users are usually interested only in the top-k join results....
213
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SIGIR
2005
ACM
16 years 7 days ago
2005
ACM
Accurate topical categorization of user queries allows for increased effectiveness, efficiency, and revenue potential in general-purpose web search systems. Such categorization be...