2228 search results - page 74 / 446 » A System for Semantic Query Optimization |
264
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SIGMOD
2006
ACM
16 years 6 months ago
2006
ACM
We present our prototype system, OMCAT, which optimizes the reevaluation of a set of pending continuous spatio-temporal queries on trajectory data, when some of the trajectories a...
186
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SIGMOD
2011
ACM
14 years 9 months ago
2011
ACM
We address the problem of making online, parallel query plans fault-tolerant: i.e., provide intra-query fault-tolerance without blocking. We develop an approach that not only achi...
143
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VLDB
1997
ACM
15 years 10 months ago
1997
ACM
Businesses today need to interrelate data stored in diverse systems with differing capabilities, ideally via a single high-level query interface. We present the design of a query ...
183
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SPIESR
2003
15 years 7 months ago
2003
In an earlier study a Semantic Content Based Image Retrieval system was developed. The system requires a Visual Object Process Diagram - VOPD to be created for each image in the d...
147
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SIGIR
2005
ACM
15 years 11 months ago
2005
ACM
Previous research into the efficiency of text retrieval systems has dealt primarily with methods that consider inverted lists in sequence; these methods are known as term-at-a-tim...