1626 search results - page 139 / 326 » Spatial-Scene Similarity Queries |
166
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DBPL
2001
Springer
15 years 9 months ago
2001
Springer
Abstract. We are interested in the theoretical foundations of the optimization of conjunctive regular path queries (CRPQs). The basic problem here is deciding query containment bot...
126
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FOCS
1993
IEEE
15 years 8 months ago
1993
IEEE
This paper investigates the computational complexity of approximating several NPoptimization problems using the number of queries to an NP oracle as a complexity measure. The resu...
144
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AMW
2009
15 years 5 months ago
2009
Abstract. Rewriting of conjunctive queries using views has many applications in database and data integration. We investigate ways to improve performance of rewriting and propose a...
134
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SIGMOD
2003
ACM
16 years 4 months ago
2003
ACM
A Query by Humming system allows the user to find a song by humming part of the tune. No musical training is needed. Previous query by humming systems have not provided satisfacto...
132
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PKDD
2009
Springer
15 years 11 months ago
2009
Springer
Web searches tend to be short and ambiguous. It is therefore not surprising that Web query disambiguation is an actively researched topic. To provide a personalized experience for ...