2853 search results - page 140 / 571 » On the Efficiency of Provenance Queries |
278
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ICDE
2006
IEEE
16 years 7 months ago
2006
IEEE
A k-NN query finds the k nearest-neighbors of a given point from a point database. When it is sufficient to measure object distance using the Euclidian distance, the key to effici...
301
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ICDE
2009
IEEE
16 years 8 months ago
2009
IEEE
Due to the structural heterogeneity of XML, queries are often interpreted approximately. This is achieved by relaxing the query and ranking the results based on their relevance to ...
312
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ICDE
2008
IEEE
16 years 7 months ago
2008
IEEE
Many new applications that involve decision making need online (i.e., OLAP-styled) preference analysis with multidimensional boolean selections. Typical preference queries includes...
264
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SIGMOD
2009
ACM
16 years 6 months ago
2009
ACM
In order to enable extensibility, modern query optimizers typically leverage a transformation rule based framework. Testing individual rule correctness as well as correctness of r...
252
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Uncertain data is inherent in a few important applications such as environmental surveillance and mobile object tracking. Top-k queries (also known as ranking queries) are often n...