6615 search results - page 38 / 1323 » Indexing Multiple Sets |
135
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JCDL
2006
ACM
15 years 8 months ago
2006
ACM
We propose a new method that enhances automatic keyphrase extraction by using semantic information on terms and phrases gleaned from a domain-specific thesaurus. We evaluate the r...
132
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DEXA
2004
Springer
15 years 7 months ago
2004
Springer
Efficient storage and retrieval of trajectory indexes has become an essential requirement for moving objects databases. The existing 3DR-tree is known to be an effective trajectory...
140
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PUC
2007
15 years 1 months ago
2007
Abstract In the near future, it will be possible to continuously record and store the entire audio–visual lifetime of a person together with all digital information that the pers...
113
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CIKM
2009
Springer
15 years 6 months ago
2009
Springer
Exact substring matching queries on large data collections can be answered using q-gram indices, that store for each occurring q-byte pattern an (ordered) posting list with the po...
102
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SIGMOD
2003
ACM
16 years 2 months ago
2003
ACM
Decision-support applications generate queries with complex predicates. We show how the factorization of complex query expressions exposes significant opportunities for exploiting...