Entropy Message Passing

Velimir M. Ilic; Miomir S. Stankovic; Branimir T. Todorovic

doi:10.1109/tit.2010.2090235

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arXiv · 0906.2895

Entropy Message Passing

Velimir M. Ilic·Miomir S. Stankovic·Branimir T. Todorovic

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Abstract

The paper proposes a new message passing algorithm for cycle-free factor graphs. The proposed "entropy message passing" (EMP) algorithm may be viewed as sum-product message passing over the entropy semiring, which has previously appeared in automata theory. The primary use of EMP is to compute the entropy of a model. However, EMP can also be used to compute expressions that appear in expectation maximization and in gradient descent algorithms.

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Velimir M. Ilic, Miomir S. Stankovic, Branimir T. Todorovic. 2010-11-08. Entropy Message Passing. https://doi.org/10.1109/tit.2010.2090235

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