Powered by OpenAIRE graph
Found an issue? Give us feedback
addClaim

A Consensus-Based Distributed Augmented Lagrangian Method

Authors: Yan Zhang 0043; Michael M. Zavlanos;

A Consensus-Based Distributed Augmented Lagrangian Method

Abstract

In this paper, we propose a distributed algorithm to solve multi-agent constrained optimization problems. Specifically, we employ the recently developed Accelerated Distributed Augmented Lagrangian (ADAL) algorithm that has been shown to exhibit faster convergence rates in practice compared to relevant distributed methods. Distributed implementation of ADAL depends on separability of the global coupling constraints. Here we extend ADAL so that it can be implemented distributedly independent of the structure of the coupling constraints. For this, we introduce local estimates of the global constraint functions and multipliers and employ a finite number of consensus steps between iterations of the algorithm to achieve agreement on these estimates. The proposed algorithm can be applied to both undirected or directed networks. Theoretical analysis shows that the algorithm converges at rate $O(1/k)$ and has steady error that is controllable by the number of consensus steps. Our numerical simulation shows that it outperforms existing methods in practice.

Related Organizations
  • BIP!
    Impact byBIP!
    selected citations
    These citations are derived from selected sources.
    This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    21
    popularity
    This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
    Top 10%
    influence
    This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
    Top 10%
    impulse
    This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
    Top 10%
Powered by OpenAIRE graph
Found an issue? Give us feedback
selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
21
Top 10%
Top 10%
Top 10%
Upload OA version
Are you the author of this publication? Upload your Open Access version to Zenodo!
It’s fast and easy, just two clicks!