4790 search results - page 549 / 958 » Reverse Query Processing |
149
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GIS
1999
ACM
15 years 10 months ago
1999
ACM
: The paper is concerned with the effective and efficient processing of spatiotemporal selection queries under varying degrees of approximation. Such queries may employ operators l...
162
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TIME
1997
IEEE
15 years 10 months ago
1997
IEEE
Temporal databases provide built-in supports for efficient recording and querying of time-evolving data. In this paper, data clustering issues in temporal database environment are...
180
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EDBT
1994
ACM
15 years 10 months ago
1994
ACM
We describe a system that provides query based associative access to the contents of distributed information servers. In typical distributed information systems there are so many o...
177
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VLDB
1994
ACM
15 years 10 months ago
1994
ACM
Global clustering has rarely been investigated in the area of spatial database systems although dramatic performance improvements can be achieved by using suitable techniques. In ...
192
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SIGIR
2010
ACM
15 years 10 months ago
2010
ACM
In this paper, we present a novel image search system, image search by concept map. This system enables users to indicate not only what semantic concepts are expected to appear bu...