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Showing 1 to 1 of 1 for “"Fractional Polymorphisms"”.
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Valued Constraint Satisfaction Problems over Infinite Domains
… cost functions are improved by fully symmetric fractional operations of all arities. We show this by (polynomial-time many-one) reducing the problem to a finite-domain VCSP which can be solved using a linear programming relaxation. We apply this result to show the polynomial-time tractability of …