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  4. Weighted Gossip: Distributed Averaging Using Non-Doubly Stochastic Matrices
 
conference paper

Weighted Gossip: Distributed Averaging Using Non-Doubly Stochastic Matrices

Bénézit, Florence  
•
Blondel, Vincent
•
Thiran, Patrick  
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2010
Proceedings of ISIT'10
IEEE International Symposium on Information Theory

This paper presents a general class of gossip-based averaging algorithms, which are inspired from Uniform Gossip [1]. While Uniform Gossip works synchronously on complete graphs, weighted gossip algorithms allow asynchronous rounds and converge on any connected, directed or undirected graph. Unlike most previous gossip algorithms [2]–[6], Weighted Gossip admits stochastic update matrices which need not be doubly stochastic. Double-stochasticity being very restrictive in a distributed setting [7], this novel degree of freedom is essential and it opens the perspective of designing a large number of new gossip-based algorithms. To give an example, we present one of these algorithms, which we call One-Way Averaging. It is based on random geographic routing, just like Path Averaging [5], except that routes are one way instead of round trip. Hence in this example, getting rid of double stochasticity allows us to add robustness to Path Averaging.

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Type
conference paper
DOI
10.1109/ISIT.2010.5513273
Author(s)
Bénézit, Florence  
Blondel, Vincent
Thiran, Patrick  
Tsitsiklis, John
Vetterli, Martin  
Date Issued

2010

Publisher

IEEE

Published in
Proceedings of ISIT'10
Start page

1753

End page

1757

Subjects

Distributed Signal Processing

•

Gossip Algorithms

•

Consensus

•

NCCR-MICS

•

NCCR-MICS/ESDM

Editorial or Peer reviewed

REVIEWED

Written at

EPFL

EPFL units
LCAV  
INDY2  
Event nameEvent placeEvent date
IEEE International Symposium on Information Theory

Austin, Texas, USA

June 13-18, 2010

Available on Infoscience
May 10, 2010
Use this identifier to reference this record
https://infoscience.epfl.ch/handle/20.500.14299/49991
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