Merging Belief Propagation and the Mean Field Approximation: A Free Energy Approach

Details Merging Belief Propagation and the Mean Field Approximation: A Free Energy Approach Merging Belief Propagation and the Mean Field Approximation: A Free Energy Approach

2011-12-02

arxiv.org/abs/1112.0467v2

Computer Science

Information Theory

Scientific paper

We present a joint message passing approach that combines belief propagation and the mean field approximation. Our analysis is based on the region-based free energy approximation method proposed by Yedidia et al. We show that the message passing fixed-point equations obtained with this combination correspond to stationary points of a constrained region-based free energy approximation. Moreover, we present a convergent implementation of these message passing fixed-point equations provided that the underlying factor graph fulfills certain technical conditions. In addition, we show how to include hard constraints in the part of the factor graph corresponding to belief propagation. Finally, we demonstrate an application of our method to iterative channel estimation and decoding in an OFDM system.

Affiliated with

Also associated with

No associations

Rating

Merging Belief Propagation and the Mean Field Approximation: A Free Energy Approach does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Merging Belief Propagation and the Mean Field Approximation: A Free Energy Approach, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Merging Belief Propagation and the Mean Field Approximation: A Free Energy Approach will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-140350