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» Parallelizing query optimization
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205
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ASPLOS
2008
ACM
15 years 8 months ago
Communication optimizations for global multi-threaded instruction scheduling
The recent shift in the industry towards chip multiprocessor (CMP) designs has brought the need for multi-threaded applications to mainstream computing. As observed in several lim...
Guilherme Ottoni, David I. August
185
Voted
STOC
2009
ACM
99views Algorithms» more  STOC 2009»
16 years 7 months ago
Testing juntas nearly optimally
A function on n variables is called a k-junta if it depends on at most k of its variables. In this article, we show that it is possible to test whether a function is a k-junta or ...
Eric Blais
EDBT
2010
ACM
185views Database» more  EDBT 2010»
16 years 1 months ago
Optimizing joins in a map-reduce environment
Implementations of map-reduce are being used to perform many operations on very large data. We examine strategies for joining several relations in the map-reduce environment. Our ...
Foto N. Afrati, Jeffrey D. Ullman
ICDM
2007
IEEE
227views Data Mining» more  ICDM 2007»
16 years 1 months ago
Optimal Subsequence Bijection
We consider the problem of elastic matching of sequences of real numbers. Since both a query and a target sequence may be noisy, i.e., contain some outlier elements, it is desirab...
Longin Jan Latecki, Qiang Wang, Suzan Koknar-Tezel...
146
Voted
PODS
2010
ACM
232views Database» more  PODS 2010»
15 years 12 months ago
Optimal sampling from distributed streams
A fundamental problem in data management is to draw a sample of a large data set, for approximate query answering, selectivity estimation, and query planning. With large, streamin...
Graham Cormode, S. Muthukrishnan, Ke Yi, Qin Zhang