arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2006.10693math.OCcs.SYeess.SY
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非线性规划和时变Optimization的定量灵敏度界

Quantitative Sensitivity Bounds for Nonlinear Programming and Time-varying Optimization

Irina Subotić, Adrian Hauswirth, Florian Dörfler

摘要:

受经典非线性最优化灵敏度结果的启发,我们导出并讨论了参数化非线性规划解映射和对偶变量的新的定量界.特别是,我们推导出显式表达式的局部和全局Lipschitz常数的非凸或凸优化问题的解决方案地图,分别。我们的研究结果是面向时变最优化问题的研究,这是常见的在线优化,包括电力系统,机器人,信号处理等各种应用。在这种情况下,我们的结果可以用来约束优化器的变化率。为了说明我们的灵敏度界限的使用,我们概括现有的参数来量化连续时间,单调运行算法的跟踪性能。此外,我们引入了一个新的连续时间运行算法的时变约束优化,我们作为一个所谓的扰动扫描过程模型。对于这种间断格式,我们建立了一类凸问题渐近解跟踪的显式界。

英文摘要:

Inspired by classical sensitivity results for nonlinear optimization, we derive and discuss new quantitative bounds to characterize the solution map and dual variables of a parametrized nonlinear program. In particular, we derive explicit expressions for the local and global Lipschitz constants of the solution map of non-convex or convex optimization problems, respectively. Our results are geared towards the study of time-varying optimization problems which are commonplace in various applications of online optimization, including power systems, robotics, signal processing and more. In this context, our results can be used to bound the rate of change of the optimizer. To illustrate the use of our sensitivity bounds we generalize existing arguments to quantify the tracking performance of continuous-time, monotone running algorithms. Further, we introduce a new continuous-time running algorithm for time-varying constrained optimization which we model as a so-called perturbed sweeping process. For this discontinuous scheme, we establish an explicit bound on the asymptotic solution tracking for a class of convex problems.

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