Projecting Ising model parameters for fast mixing

Justin Domke, Xianghang Liu

    Research output: Contribution to journalConference articlepeer-review

    5 Citations (Scopus)

    Abstract

    Inference in general Ising models is difficult, due to high treewidth making treebased algorithms intractable. Moreover, when interactions are strong, Gibbs sampling may take exponential time to converge to the stationary distribution. We present an algorithm to project Ising model parameters onto a parameter set that is guaranteed to be fast mixing, under several divergences. We find that Gibbs sampling using the projected parameters is more accurate than with the original parameters when interaction strengths are strong and when limited time is available for sampling.

    Original languageEnglish
    JournalAdvances in Neural Information Processing Systems
    Publication statusPublished - 2013
    Event27th Annual Conference on Neural Information Processing Systems, NIPS 2013 - Lake Tahoe, NV, United States
    Duration: 5 Dec 201310 Dec 2013

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