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Jan 7, 2015 · In this work, we study whether existence of non-trivial polymorphisms implies tractability beyond the realm of constraint satisfaction problems.
This work designs a randomized algorithm to minimize a function f that admits a fractional polymorphism which is measure preserving and has a transitive ...
In particular, we design a randomized algorithm to minimize a function f that admits a fractional polymorphism which is measure preserving and has a transitive ...
Jan 8, 2015 · Abstract. An elegant characterization of the complexity of constraint satisfaction problems has emerged.
Aug 13, 2018 · Bibliographic details on Combinatorial Optimization Algorithms via Polymorphisms.
Combinatorial Optimization Algorithms via Polymorphisms. An elegant characterization of the complexity of constraint satisfaction problems has emerged in the ...
Combinatorial optimization algorithms via polymorphisms. J Brown-Cohen, P Raghavendra. arXiv preprint arXiv:1501.01598, 2015. 19, 2015 ; Skill-Mix: A flexible ...
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We present an exact dynamic programming algorithm for solving the SNP - MSP problem and also show that the SNP - MSQ problem is NP-hard by a reduction from ...
We propose a hierarchy of necessary optimality conditions for these problems. We develop new algorithms, based on coordinate descent and local combinatorial ...