Treewidth-pliability and PTAS for Max-CSPs

We identify a sufficient condition, treewidth-pliability, that gives a polynomial-time approximation scheme (PTAS) for a large class of Max-2-CSPs parametrised by the class of allowed constraint graphs (with arbitrary constraints on an unbounded alphabet). Our result applies more generally to the ma...

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Bibliographic Details
Main Authors: Romero, M, Wrochna, M, Zivny, S
Format: Conference item
Language:English
Published: Society for Industrial and Applied Mathematics 2021