2546 search results - page 411 / 510 » Managing long-running queries |
199
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EDBT
2009
ACM
16 years 1 months ago
2009
ACM
Data stream management systems usually have to process many long-running queries that are active at the same time. Multiple queries can be evaluated more efficiently together tha...
217
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ICCS
2009
Springer
16 years 29 days ago
2009
Springer
Abstract. In knowledge bases, the open world assumption and the ability to express variables may lead to an answer redundancy problem. This problem occurs when the returned answers...
159
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SENSYS
2005
ACM
15 years 12 months ago
2005
ACM
Archival storage of sensor data is necessary for applications that query, mine, and analyze such data for interesting features and trends. We argue that existing storage systems a...
169
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CIKM
2005
Springer
15 years 12 months ago
2005
Springer
Accurately and efficiently estimating the number of distinct values for some attribute(s) or sets of attributes in a data set is of critical importance to many database operation...
189
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MM
2004
ACM
15 years 11 months ago
2004
ACM
In this paper, we propose a novel transductive learning framework named manifold-ranking based image retrieval (MRBIR). Given a query image, MRBIR first makes use of a manifold ra...