The limits of MAP inference by MWSS on perfect graphs

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• Dr Adrian Weller (MLG, University of Cambridge)
• Thursday 27 August 2015, 15:00-15:30
• Engineering Department, CBL Room BE-438.

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I shall briefly describe a recent, promising method to perform MAP inference for discrete undirected graphical models based on reducing the optimization problem to finding a maximum weight stable set (MWSS) in a derived weighted graph, which if perfect, may be performed in time polynomial in the number of variables. I shall discuss recent work (AISTATS 2015), where the limits of this approach were established for the class of binary pairwise (Ising) models, yielding a simple, interesting characterization.

http://jmlr.org/proceedings/papers/v38/weller15.pdf

This talk is part of the Machine Learning @ CUED series.

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