Phase transitions and computational difficulty in random constraint satisfaction problems

F Krząkała, L Zdeborova - Journal of Physics: Conference Series, 2008 - iopscience.iop.org
We review the understanding of the random constraint satisfaction problems, focusing on the
q-coloring of large random graphs, that has been achieved using the cavity method. We also …

Phase transitions in the q-coloring of random hypergraphs

M Gabrié, V Dani, G Semerjian… - Journal of Physics A …, 2017 - iopscience.iop.org
We study in this paper the structure of solutions in the random hypergraph coloring problem
and the phase transitions they undergo when the density of constraints is varied …

Hiding quiet solutions in random constraint satisfaction problems

F Krzakala, L Zdeborová - Physical review letters, 2009 - APS
We study constraint satisfaction problems on the so-called planted random ensemble. We
show that for a certain class of problems, eg, graph coloring, many of the properties of the …

Random subcubes as a toy model for constraint satisfaction problems

T Mora, L Zdeborová - Journal of Statistical Physics, 2008 - Springer
We present an exactly solvable random-subcube model inspired by the structure of hard
constraint satisfaction and optimization problems. Our model reproduces the structure of the …

The asymptotics of the clustering transition for random constraint satisfaction problems

L Budzynski, G Semerjian - Journal of Statistical Physics, 2020 - Springer
Random constraint satisfaction problems exhibit several phase transitions when their
density of constraints is varied. One of these threshold phenomena, known as the clustering …

Statistical physics of hard optimization problems

L Zdeborová - arXiv preprint arXiv:0806.4112, 2008 - arxiv.org
Optimization is fundamental in many areas of science, from computer science and
information theory to engineering and statistical physics, as well as to biology or social …

Circular coloring of random graphs: statistical physics investigation

C Schmidt, NE Guenther… - Journal of Statistical …, 2016 - iopscience.iop.org
Circular coloring is a constraint satisfaction problem where colors are assigned to nodes in a
graph in such a way that every pair of connected nodes has two consecutive colors (the first …

Constraint satisfaction problems with isolated solutions are hard

L Zdeborová, M Mézard - Journal of Statistical Mechanics: Theory …, 2008 - iopscience.iop.org
We study the phase diagram and the algorithmic hardness of the random'locked'constraint
satisfaction problems, and compare them to the commonly studied'non-locked'problems like …

Gibbs states and the set of solutions of random constraint satisfaction problems

F Krzakała, A Montanari… - Proceedings of the …, 2007 - National Acad Sciences
An instance of a random constraint satisfaction problem defines a random subset 𝒮 (the set
of solutions) of a large product space XN (the set of assignments). We consider two …

Algorithmic barriers from phase transitions

D Achlioptas, A Coja-Oghlan - 2008 49th Annual IEEE …, 2008 - ieeexplore.ieee.org
For many random constraint satisfaction problems, by now there exist asymptotically tight
estimates of the largest constraint density for which solutions exist. At the same time, for …