876 search results - page 95 / 176 » Effective Use of Block-Level Sampling in Statistics Estimati... |
167
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ICDE
2009
IEEE
15 years 11 months ago
2009
IEEE
We introduce a framework for reordering join pipelines at runtime in a database system. This framework incorporates novel techniques for simulating the execution of a join pipeline...
101
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JCB
2007
14 years 9 months ago
2007
Many bioinformatics problems can implicitly depend on estimating large-scale covariance matrix. The traditional approaches tend to give rise to high variance and low accuracy esti...
SIGMOD
1998
ACM
15 years 2 months ago
1998
ACM
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 ...
EDBT
2006
ACM
15 years 10 months ago
2006
ACM
Recent advances in hardware technology have resulted in the ability to collect and process large amounts of data. In many cases, the collection of the data is a continuous process ...
CGF
2008
14 years 10 months ago
2008
This paper presents a novel method that effectively combines both control variates and importance sampling in a sequential Monte Carlo context. The radiance estimates computed dur...