Optimal mixing of Glauber dynamics: Entropy factorization via high-dimensional expansion

Z Chen, K Liu, E Vigoda - Proceedings of the 53rd Annual ACM SIGACT …, 2021 - dl.acm.org
We prove an optimal mixing time bound for the single-site update Markov chain known as
the Glauber dynamics or Gibbs sampling in a variety of settings. Our work presents an …

Rapid mixing from spectral independence beyond the Boolean domain

W Feng, H Guo, Y Yin, C Zhang - ACM Transactions on Algorithms …, 2022 - dl.acm.org
We extend the notion of spectral independence (introduced by Anari, Liu, and Oveis
Gharan) from the Boolean domain to general discrete domains. This property characterises …

Rapid mixing for colorings via spectral independence

Z Chen, A Galanis, D Štefankovič, E Vigoda - Proceedings of the 2021 ACM …, 2021 - SIAM
The spectral independence approach of Anari et al.(2020) utilized recent results on high-
dimensional expanders of Alev and Lau (2020) and established rapid mixing of the Glauber …

Strong spatial mixing for colorings on trees and its algorithmic applications

Z Chen, K Liu, N Mani, A Moitra - 2023 IEEE 64th Annual …, 2023 - ieeexplore.ieee.org
Strong spatial mixing (SSM) is an important quantitative notion of correlation decay for Gibbs
distributions arising in statistical physics, probability theory, and theoretical computer …

Improved bounds for randomly sampling colorings via linear programming

S Chen, M Delcourt, A Moitra, G Perarnau… - Proceedings of the Thirtieth …, 2019 - SIAM
A well-known conjecture in computer science and statistical physics is that Glauber
dynamics on the set of k-colorings of a graph G on n vertices with maximum degree Δ is …

A matrix trickle-down theorem on simplicial complexes and applications to sampling colorings

D Abdolazimi, K Liu, SO Gharan - 2021 IEEE 62nd Annual …, 2022 - ieeexplore.ieee.org
We show that the natural Glauber dynamics mixes rapidly and generates a random proper
edge-coloring of a graph with maximum degree Δ whenever the number of colors is at least …

Convergence of MCMC and loopy BP in the tree uniqueness region for the hard-core model

C Efthymiou, TP Hayes, D Stefankovic, E Vigoda… - SIAM Journal on …, 2019 - SIAM
We study the hard-core (gas) model defined on independent sets of an input graph where
the independent sets are weighted by a parameter (aka fugacity) λ>0. For constant Δ, the …

A deterministic algorithm for counting colorings with 2-Delta colors

J Liu, A Sinclair, P Srivastava - 2019 IEEE 60th Annual …, 2019 - ieeexplore.ieee.org
We give a polynomial time deterministic approximation algorithm (an FPTAS) for counting
the number of q-colorings of a graph of maximum degree Delta, provided only that q≥ …

Counting independent sets and colorings on random regular bipartite graphs

C Liao, J Lin, P Lu, Z Mao - arXiv preprint arXiv:1903.07531, 2019 - arxiv.org
We give a fully polynomial-time approximation scheme (FPTAS) to count the number of
independent sets on almost every $\Delta $-regular bipartite graph if $\Delta\ge 53$. In the …

Sampling Proper Colorings on Line Graphs Using (1+ o (1)) Δ Colors

Y Wang, C Zhang, Z Zhang - Proceedings of the 56th Annual ACM …, 2024 - dl.acm.org
We prove that the single-site Glauber dynamics for sampling proper q-colorings mixes in O Δ
(n log n) time on line graphs with n vertices and maximum degree Δ when q>(1+ o (1)) Δ …