250 search results - page 23 / 50 » Tree pattern query minimization |
173
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IKE
2003
15 years 5 months ago
2003
Inverted files are widely used to index documents in large-scale information retrieval systems. An inverted file consists of posting lists, which can be stored in either a documen...
139
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HICSS
2003
IEEE
15 years 9 months ago
2003
IEEE
The discovery of sequential patterns, which extends beyond frequent item-set finding of association rule mining, has become a challenging task due to its complexity. Essentially, ...
274
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SIGMOD
2005
ACM
16 years 4 months ago
2005
ACM
Given a set of objects P and a query point q, a k nearest neighbor (k-NN) query retrieves the k objects in P that lie closest to q. Even though the problem is well-studied for sta...
159
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CVPR
2000
IEEE
16 years 6 months ago
2000
IEEE
Classifying an unknown input is a fundamental problem in Pattern Recognition. One standard method is finding its nearest neighbors in a reference set. It would be very time consum...
137
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MFCS
2009
Springer
15 years 10 months ago
2009
Springer
We study visibly pushdown automata (VPA) models for expressing and evaluating queries, expressed using MSO formulas, on words with a nesting structure (like XML documents). We de�...