6004 search results - page 489 / 1201 » Parallelizing query optimization |
164
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PDP
2008
IEEE
16 years 1 months ago
2008
IEEE
This paper describes the design of a crawler devised to perform the periodic retrieval of Web documents for a search engine able to accept on-line updates in a concurrent manner. ...
181
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SISAP
2008
IEEE
16 years 1 months ago
2008
IEEE
Similarity search has been proved suitable for searching in very large collections of unstructured data objects. We are interested in efficient parallel query processing under si...
199
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DEXA
2004
Springer
16 years 10 days 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...
161
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IPPS
1998
IEEE
15 years 11 months ago
1998
IEEE
Multi-dimensional index structures such as R-trees enable fast searching in high-dimensional spaces. They differ from uni-dimensional structures in the following aspects: (1) inde...
189
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DCOSS
2007
Springer
15 years 11 months ago
2007
Springer
Sensor networks are often used to sense the physical world and provide observations for various uses. In hostile environments, it is critical to control the network access to ensur...