arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.13291math.OC
收藏

基于立方正则化的分布式随机嵌套Optimization

Distributed Stochastic Nested Optimization via Cubic Regularization

Tor Anderson, Sonia Martinez

摘要:

本文考虑一个嵌套随机分布最优化问题。在它中,近似解实现的内部问题的杠杆,以获得一个分布式随机立方正则牛顿(DiSCRN)更新的决策变量的外部问题。我们提供了一个例子,涉及电动汽车用户的各种偏好,这表明该模型是适当的,足够复杂的各种数据驱动的多智能体设置,与非嵌套模型。主要的两个贡献的文件是:(一)本地停止标准的发展,以解决内部最优化问题,保证足够的精度外问题更新,和(ii)开发的新的DiSCRN算法解决外问题和其功效的理论证明。仿真表明,这种方法是更稳定,收敛速度比标准梯度和牛顿外问题更新在一个高度非凸的情况下,我们还证明了该方法扩展到电动汽车充电的情况下,其中电阻电池损耗和时间的使用定价模型被认为是在一个时间范围内。

英文摘要:

This paper considers a nested stochastic distributed optimization problem. In it, approximate solutions to realizations of the inner-problem are leveraged to obtain a Distributed Stochastic Cubic Regularized Newton (DiSCRN) update to the decision variable of the outer problem. We provide an example involving electric vehicle users with various preferences which demonstrates that this model is appropriate and sufficiently complex for a variety of data-driven multi-agent settings, in contrast to non-nested models. The main two contributions of the paper are: (i) development of local stopping criterion for solving the inner optimization problem which guarantees sufficient accuracy for the outer-problem update, and (ii) development of the novel DiSCRN algorithm for solving the outer-problem and a theoretical justification of its efficacy. Simulations demonstrate that this approach is more stable and converges faster than standard gradient and Newton outer-problem updates in a highly nonconvex scenario, and we also demonstrate that the method extends to an EV charging scenario in which resistive battery losses and a time-of-use pricing model are considered over a time horizon.

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。

↑