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CP
2008
Springer
14 years 20 days ago
A Soft Constraint of Equality: Complexity and Approximability
We introduce the SoftAllEqual global constraint, which maximizes the number of equalities holding between pairs of assignments to a set of variables. We study the computational com...
Emmanuel Hebrard, Barry O'Sullivan, Igor Razgon
GLOBECOM
2007
IEEE
14 years 5 months ago
Low Complexity Soft-Input Soft-Output Block Decision Feedback Equalization
— A low complexity soft-input soft-output (SISO) block decision feedback equalization (BDFE) algorithm is presented for Turbo equalization. Based on minimum mean square error (MM...
Jingxian Wu, Yahong Rosa Zheng
IJCAI
2003
14 years 8 days ago
Reasoning about soft constraints and conditional preferences: complexity results and approximation techniques
Many real life optimization problems contain both hard and soft constraints, as well as qualitative conditional preferences. However, there is no single formalism to specify all t...
Carmel Domshlak, Francesca Rossi, Kristen Brent Ve...
CP
2009
Springer
14 years 11 months ago
Constraints of Difference and Equality: A Complete Taxonomic Characterisation
Abstract. Many combinatorial problems encountered in practice involve constraints that require that a set of variables take distinct or equal values. The AllDifferent constraint, i...
Emmanuel Hebrard, Dániel Marx, Barry O'Sull...
CVPR
2005
IEEE
14 years 4 months ago
Symmetric Stereo Matching for Occlusion Handling
In this paper, we propose a symmetric stereo model to handle occlusion in dense two-frame stereo. Our occlusion reasoning is directly based on the visibility constraint that is mo...
Jian Sun, Yin Li, Sing Bing Kang