2853 search results - page 329 / 571 » On the Efficiency of Provenance Queries |
317
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ICDE
2007
IEEE
16 years 8 months ago
2007
IEEE
The ability to store and query uncertain information is of great benefit to databases that infer values from a set of observations, including databases of moving objects, sensor r...
288
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ICDE
2005
IEEE
16 years 8 months ago
2005
IEEE
Given a region qR and a future timestamp qT, a "range aggregate" query estimates the number of objects expected to appear in qR at time qT. Currently the only methods fo...
315
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ICDE
2001
IEEE
16 years 8 months ago
2001
IEEE
In this paper, we develop a general framework for approximate nearest neighbor queries. We categorize the current approaches for nearest neighbor query processing based on either ...
260
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ICDE
1997
IEEE
16 years 8 months ago
1997
IEEE
Query optimization is an integral part of relational database management systems. One important task in query optimization is selectivity estimation, that is, given a query P, we ...
255
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VLDB
2006
ACM
16 years 6 months ago
2006
ACM
For querying structured and semistructured data, data retrieval and document retrieval are two valuable and complementary techniques that have not yet been fully integrated. In thi...