2546 search results - page 159 / 510 » Managing long-running queries |
205
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CIKM
2007
Springer
15 years 10 months ago
2007
Springer
We investigate the problem of how to evaluate, fast and efficiently, classes of optimal route queries on a massive graph in a unified framework. To evaluate a route query effectiv...
184
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CIKM
2009
Springer
15 years 10 months ago
2009
Springer
While provenance has been extensively studied in the literature, the efficient evaluation of provenance queries remains an open problem. Traditional query optimization techniques...
219
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EDBT
2008
ACM
16 years 6 months ago
2008
ACM
Recently, many new applications, such as sensor data monitoring and mobile device tracking, raise up the issue of uncertain data management. Compared to "certain" data, ...
274
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
In this paper, we study a novel form of continuous nearest neighbor queries in the presence of obstacles, namely continuous obstructed nearest neighbor (CONN) search. It considers...
179
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PODS
2010
ACM
15 years 11 months ago
2010
ACM
The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...