Hiding Quiet Solutions in Random Constraint Satisfaction Problems

Florent Krzakala,L. Zdeborová

Published 2009 in Physical Review Letters

ABSTRACT

We study constraint satisfaction problems on the so-called planted random ensemble. We show that for a certain class of problems, e.g., graph coloring, many of the properties of the usual random ensemble are quantitatively identical in the planted random ensemble. We study the structural phase transitions and the easy-hard-easy pattern in the average computational complexity. We also discuss the finite temperature phase diagram, finding a close connection with the liquid-glass-solid phenomenology.

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