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基于新函数下的半定规划原始对偶内点算法的复杂度分析 被引量:1

Analysis of Complexity of a Primal-dual Interior Point Algorithms Based on a New Kernel Function for Semidefinite Optimization
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摘要 以φ(t)=(tp+1-1)-(p+1)ln t作为核函数,讨论半定规划的一类多项式原始对偶内点算法的收敛性及其复杂度.基于这个核函数找到牛顿系统的一个新的搜索方向,从而得到一个新的算法,并给出了其长步长迭代界和短步长迭代界分别为O(n1-pln nε),O(n23-plnεn). Presents a polynomial primal dual interior point algorithms for SDP based on a kernel function and analyzes its convergence and polynomial complexity. The kernel function is φ(t)=(tp+1-1)-(P+1)ln t. A new direction for Newton system and a new algorithm are given based on the new function, and it is induced that the polynomial complexity of algorithms is O(n 1-p ln n/ε),O(n 3/2-p ln n/ε).
出处 《福建师范大学学报(自然科学版)》 CAS CSCD 北大核心 2013年第2期16-22,共7页 Journal of Fujian Normal University:Natural Science Edition
基金 国家自然科学基金资助项目(11071041)
关键词 半定规划 原始对偶内点算法 复杂度 semidefinite optimization primal-dual interior point algorithm polynomial complexity
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