358 search results - page 9 / 72 » Algebraic Optimization of Computations over Scientific Datab... |
113
Voted
EDBT
2012
ACM
13 years 2 months ago
2012
ACM
We present an effective optimization framework for general SQLlike map-reduce queries, which is based on a novel query algebra and uses a small number of higher-order physical ope...
106
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CONCURRENCY
2002
15 years 6 days ago
2002
In this paper, we outline the design of a recommendation system (MyPYTHIA) implemented as a web portal. MyPYTHIA's design objectives include evaluating the quality and perfor...
114
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INFOVIS
2002
IEEE
15 years 5 months ago
2002
IEEE
We present an extremely fast graph drawing algorithm for very large graphs, which we term ACE (for Algebraic multigrid Computation of Eigenvectors). ACE exhibits an improvement of...
159
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ICDE
2011
IEEE
14 years 3 months ago
2011
IEEE
— In this paper, we study the problem of efficiently computing multiple aggregation queries over a data stream. In order to share computation, prior proposals have suggested ins...
119
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ICDE
2010
IEEE
16 years 4 days ago
2010
IEEE
Abstract-- This paper introduces a deterministic approximation algorithm with error guarantees for computing the probability of propositional formulas over discrete random variable...