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arXiv 1606.01993math.OC
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异步多Agent主-对偶Optimization

Asynchronous Multi-Agent Primal-Dual Optimization

Matthew T. Hale, Angelia Nedich, Magnus Egerstedt

摘要:

我们提出了一个框架,异步解决凸优化问题的代理网络的存在下,一个集中的云计算机增强。该框架使用Tikhonov正则化的原始-对偶方法,其中代理更新系统的原始变量,云更新其对偶变量。为了最小化对系统的协调要求,允许代理之间的通信和计算时间是任意的,只要它们满足温和的条件。从代理到云的通信同样在没有任何时间协调的情况下进行。然而,我们要求云保持双变量的值在代理之间同步,并提供了一个反例,证明这种同步水平确实是收敛所必需的。在原始和对偶空间中提供了收敛速度估计,并给出了仿真结果,证明了该算法的操作和收敛性。

英文摘要:

We present a framework for asynchronously solving convex optimization problems over networks of agents which are augmented by the presence of a centralized cloud computer. This framework uses a Tikhonov-regularized primal-dual approach in which the agents update the system's primal variables and the cloud updates its dual variables. To minimize coordination requirements placed upon the system, the times of communications and computations among the agents are allowed to be arbitrary, provided they satisfy mild conditions. Communications from the agents to the cloud are likewise carried out without any coordination in their timing. However, we require that the cloud keep the dual variable's value synchronized across the agents, and a counterexample is provided that demonstrates that this level of synchrony is indeed necessary for convergence. Convergence rate estimates are provided in both the primal and dual spaces, and simulation results are presented that demonstrate the operation and convergence of the proposed algorithm.

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。

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