On the cavity method for decimated random constraint satisfaction problems and the analysis of belief propagation guided decimation algorithms

F. Ricci-Tersenghi,G. Semerjian

Published 2009 in arXiv.org

ABSTRACT

We introduce a version of the cavity method for diluted mean-field spin models that allows the computation of thermodynamic quantities similar to the Franz–Parisi quenched potential in sparse random graph models. This method is developed in the particular case of partially decimated random constraint satisfaction problems. This allows us to develop a theoretical understanding of a class of algorithms for solving constraint satisfaction problems, in which elementary degrees of freedom are sequentially assigned according to the results of a message passing procedure (belief propagation). We confront this theoretical analysis with the results of extensive numerical simulations.

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