liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Uniformly reweighted belief propagation for distributed Bayesian hypothesis testing
Politecnico di Torino, Italy.
Chalmers University of Technology, Sweden.
Technical University of Madrid, Spain. (Signal Processing Applications Group)
2011 (English)In: Proc. of IEEE Statistical Signal Processing Workshop (SSP), 2011, 733-736 p.Conference paper, Poster (Refereed)
Abstract [en]

Belief propagation (BP) is a technique for distributed inference in wireless networks and is often used even when the underlying graphical model contains cycles. In this paper, we propose a uniformly reweighted BP scheme that reduces the impact of cycles by weighting messages by a constant “edge appearance probability” ρ ≤ 1. We apply this algorithm to distributed binary hypothesis testing problems (e.g., distributed detection) in wireless networks with Markov random field models. We demonstrate that in the considered setting the proposed method outperforms standard BP, while maintaining similar complexity. We then show that the optimal ρ can be approximated as a simple function of the average node degree, and can hence be computed in a distributed fashion through a consensus algorithm.

Place, publisher, year, edition, pages
2011. 733-736 p.
Keyword [en]
Belief propagation, distributed Bayesian hypothesis testing, graphical models
National Category
Engineering and Technology Signal Processing Communication Systems
URN: urn:nbn:se:liu:diva-81322DOI: 10.1109/SSP.2011.5967807ISBN: 978-1-4577-0569-4OAI: diva2:551608
IEEE Statistical Signal Processing Workshop (SSP), Nice, France
Available from: 2012-09-11 Created: 2012-09-11 Last updated: 2012-09-21

Open Access in DiVA

fulltext(228 kB)155 downloads
File information
File name FULLTEXT01.pdfFile size 228 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Other links

Publisher's full textUniformly reweighted belief propagation for distributed Bayesian hypothesis testing

Search in DiVA

By author/editor
Savic, Vladimir
Engineering and TechnologySignal ProcessingCommunication Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 155 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 130 hits
ReferencesLink to record
Permanent link

Direct link