3225 search results - page 343 / 645 » Query Optimization by Stored Queries |
273
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SIGMOD
2008
ACM
16 years 6 months ago
2008
ACM
Pattern matching over event streams is increasingly being employed in many areas including financial services, RFIDbased inventory management, click stream analysis, and electroni...
175
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COMPGEOM
2009
ACM
16 years 1 months ago
2009
ACM
We present cache-oblivious solutions to two important variants of range searching: range reporting and approximate range counting. Our main contribution is a general approach for ...
177
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VLDB
1997
ACM
15 years 10 months ago
1997
ACM
This paper presents a region splitting strategy for physical database design of multidimensional le organizations. Physical database design is the process of determining the optim...
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...
286
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ICDE
2000
IEEE
16 years 8 months ago
2000
IEEE
Optimizing queries that involve operations on spatial data requires estimating the selectivity and cost of these operations. In this paper, we focus on estimating the cost of spat...