arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1411.2129math.OC
收藏

基于原始-对偶度量的凸优化内点算法

Interior-point algorithms for convex optimization based on primal-dual metrics

Tor Myklebust, Levent Tunçel

摘要:

本文提出并分析了锥型凸优化问题的原-对偶内点算法。我们分析的算法的家庭是所谓的短步长算法,他们匹配当前最好的迭代复杂度界的原始对偶对称内点算法的Nesterov和托德,对称锥规划问题与给定的自缩放障碍。我们的结果适用于任何凸锥的自协调势垒。我们还证明了我们的算法的某些专业双曲锥规划问题(严格之间的对称锥规划和一般的凸优化问题的一般性)可以利用双曲障碍的有利的特殊结构。我们作出新的连接黎曼几何,积分算子空间,高斯求积,并加强我们的算法的连接,拟牛顿更新,因此一般的一阶方法。

英文摘要:

We propose and analyse primal-dual interior-point algorithms for convex optimization problems in conic form. The families of algorithms we analyse are so-called short-step algorithms and they match the current best iteration complexity bounds for primal-dual symmetric interior-point algorithm of Nesterov and Todd, for symmetric cone programming problems with given self-scaled barriers. Our results apply to any self-concordant barrier for any convex cone. We also prove that certain specializations of our algorithms to hyperbolic cone programming problems (which lie strictly between symmetric cone programming and general convex optimization problems in terms of generality) can take advantage of the favourable special structure of hyperbolic barriers. We make new connections to Riemannian geometry, integrals over operator spaces, Gaussian quadrature, and strengthen the connection of our algorithms to quasi-Newton updates and hence first-order methods in general.

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。

↑