627 search results - page 91 / 126 » Efficient Top-k Query Evaluation on Probabilistic Data |
260
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ICDE
2007
IEEE
16 years 7 months ago
2007
IEEE
Recently there has been increasing interest in the development of progress indicators for SQL queries. In this paper we present a lightweight online framework for this problem. Ou...
396
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ICDE
2000
IEEE
16 years 7 months ago
2000
IEEE
In high-dimensional and complex metric spaces, determining the nearest neighbor (NN) of a query object ? can be a very expensive task, because of the poor partitioning operated by...
259
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
We present a complete XPath cost-based optimization and execution framework and demonstrate its effectiveness and efficiency for a variety of queries and datasets. The framework i...
184
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CLOUDCOM
2010
Springer
15 years 3 months ago
2010
Springer
Geospatial queries (GQ) have been used in a wide variety of applications such as decision support systems, profile-based marketing, bioinformatics and GIS. Most of the existing qu...
156
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DAWAK
2000
Springer
15 years 10 months ago
2000
Springer
In this paper, we propose a new technique for multidimensional query processing which can be widely applied in database systems. Our new technique, called tree striping, generalize...