Convergence and Applications of a Gossip-based Gauss-Newton Algorithm
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Convergence and Applications of a Gossip-based Gauss-Newton Algorithm

  • Author(s): Li, Xiao
  • Scaglione, Anna
  • et al.

Published Web Location

https://arxiv.org/pdf/1210.0056.pdf
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Abstract

The Gauss-Newton algorithm is a popular and efficient centralized method for solving non-linear least squares problems. In this paper, we propose a multi-agent distributed version of this algorithm, named Gossip-based Gauss-Newton (GGN) algorithm, which can be applied in general problems with non-convex objectives. Furthermore, we analyze and present sufficient conditions for its convergence and show numerically that the GGN algorithm achieves performance comparable to the centralized algorithm, with graceful degradation in case of network failures. More importantly, the GGN algorithm provides significant performance gains compared to other distributed first order methods.

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