arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2003.12665eess.SYcs.MAcs.SY
收藏

基于收缩分析的分布时变原-对偶动力学

Distributed and time-varying primal-dual dynamics via contraction analysis

Pedro Cisneros-Velarde, Saber Jafarpour, Francesco Bullo

摘要:

在本说明中,我们提供了一个总体分析的原始对偶动力学与线性等式约束优化问题使用收缩分析。对于著名的标准版本的问题:我们建立凸下的收敛性和强凸下的收缩率。然后,对于一个典型的分布优化问题,我们使用部分压缩性建立其原始-对偶动力学的全局指数收敛性。作为应用,我们提出了一个新的分布式求解器的最小二乘问题具有相同的收敛保证。最后,对于集中式和分布式原始对偶动态的时变版本,我们利用它们的收缩性质来建立它们的跟踪误差的界限。为了支持我们的分析,我们介绍新的结果收缩理论。

英文摘要:

In this note, we provide an overarching analysis of primal-dual dynamics associated to linear equality-constrained optimization problems using contraction analysis. For the well-known standard version of the problem: we establish convergence under convexity and the contracting rate under strong convexity. Then, for a canonical distributed optimization problem, we use partial contractivity to establish global exponential convergence of its primal-dual dynamics. As an application, we propose a new distributed solver for the least-squares problem with the same convergence guarantees. Finally, for time-varying versions of both centralized and distributed primal-dual dynamics, we exploit their contractive nature to establish bounds on their tracking error. To support our analyses, we introduce novel results on contraction theory.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑