arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2007.09525math.OC
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凸优化的新近似牛顿型方法

New Proximal Newton-Type Methods for Convex Optimization

Ilan Adler, Zhiyue Tom Hu, Tianyi Lin

摘要:

本文对复合形式的凸优化问题提出了新的近似牛顿型方法。应用包括模型预测控制(MPC)和嵌入式MPC。我们的新方法在计算上是有吸引力的,因为它们不需要在每次迭代时评估Hessian,同时保持快速的收敛速度。更具体地说,我们证明了整体收敛性的保证和超线性收敛是在附近的最优解。我们还结合拟牛顿和不精确子问题求解方案,开发了几种实用的变型,并在一定条件下为它们提供了理论保证。在真实数据集上的实验结果证明了新方法的有效性和效率。

英文摘要:

In this paper, we propose new proximal Newton-type methods for convex optimization problems in composite form. The applications include model predictive control (MPC) and embedded MPC. Our new methods are computationally attractive since they do not require evaluating the Hessian at each iteration while keeping fast convergence rate. More specifically, we prove the global convergence is guaranteed and the superlinear convergence is achieved in the vicinity of an optimal solution. We also develop several practical variants by incorporating quasi-Newton and inexact subproblem solving schemes and provide theoretical guarantee for them under certain conditions. Experimental results on real-world datasets demonstrate the effectiveness and efficiency of new methods.

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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