3514 search results - page 352 / 703 » On Moving Object Queries |
178
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PVLDB
2010
15 years 5 months ago
2010
Mobile commerce and location based services (LBS) are some of the fastest growing IT industries in the last five years. Location update of mobile clients is a fundamental capabil...
197
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JUCS
2010
15 years 1 months ago
2010
: We address the question of how to communicate among distributed processes values such as real numbers, continuous functions and geometrical solids with arbitrary precision, yet e...
188
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SIGMOD
2002
ACM
16 years 6 months ago
2002
ACM
This paper addresses the problem of evaluating ranked top-? queries with expensive predicates. As major DBMSs now all support expensive user-defined predicates for Boolean queries...
237
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SAC
2010
ACM
16 years 1 months ago
2010
ACM
In this paper, we explore the problem of processing a novel type of location based queries, named the location based top-k query, which involves both of spatial and non-spatial sp...
197
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PVLDB
2010
15 years 5 months ago
2010
The need to improve a suboptimal execution plan picked by the query optimizer for a repeatedly run SQL query arises routinely. Complex expressions, skewed or correlated data, and ...