250 search results - page 44 / 50 » Tree pattern query minimization |
111
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FSTTCS
1993
Springer
15 years 1 months ago
1993
Springer
We investigate the complexity and approximability of some location problems when two distance values are specified for each pair of potential sites. These problems involve the se...
ECCC
2007
14 years 9 months ago
2007
We study the notion of learning in an oblivious changing environment. Existing online learning algorithms which minimize regret are shown to converge to the average of all locally...
CN
2002
14 years 9 months ago
2002
We present an approach to building multicast services at the network layer using unicast forwarding and two additional building blocks: (i) ephemeral state probes, i.e. extremely l...
65
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ACSC
2006
IEEE
15 years 3 months ago
2006
IEEE
Nearest neighbour (NN) searches and k nearest neighbour (k-NN) searches are widely used in pattern recognition and image retrieval. An NN (k-NN) search finds the closest object (...
121
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DICTA
2003
14 years 11 months ago
2003
For content-based image retrieval techniques, query image is used to pick up and rank some relevant images from a database using some certain similarity metric. If semantic feature...