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» The Cardinality Matrix Constraint
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SIGMOD
2010
ACM
200views Database» more  SIGMOD 2010»
13 years 5 months ago
QRelX: generating meaningful queries that provide cardinality assurance
In many business and consumer applications, queries have cardinality constraints. However, current database systems provide minimal support for cardinality assurance. Consequently...
Manasi Vartak, Venkatesh Raghavan, Elke A. Rundens...
CONSTRAINTS
2007
89views more  CONSTRAINTS 2007»
13 years 5 months ago
Cardinal: A Finite Sets Constraint Solver
In this paper we present Cardinal, a general finite sets constraint solver just made publicly available in ECLiPSe Prolog, suitable for combinatorial problem solving by exploiting ...
Francisco Azevedo
DMDW
2001
91views Management» more  DMDW 2001»
13 years 6 months ago
On Estimating the Cardinality of Aggregate Views
Accurately estimating the cardinality of aggregate views is crucial for logical and physical design of data warehouses. While the warehouse is under development and data are not a...
Paolo Ciaccia, Matteo Golfarelli, Stefano Rizzi
NIPS
2004
13 years 6 months ago
A Direct Formulation for Sparse PCA Using Semidefinite Programming
We examine the problem of approximating, in the Frobenius-norm sense, a positive, semidefinite symmetric matrix by a rank-one matrix, with an upper bound on the cardinality of its...
Alexandre d'Aspremont, Laurent El Ghaoui, Michael ...
CORR
2008
Springer
96views Education» more  CORR 2008»
13 years 5 months ago
Cardinality heterogeneities in Web service composition: Issues and solutions
Abstract. Data exchanges between Web services engaged in a composition raise several heterogeneities. In this paper, we address the problem of data cardinality heterogeneity in a c...
Michael Mrissa, Philippe Thiran, Jean-Marie Jacque...