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arXiv 1509.02585math.OC
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具有拟切向子问题的非线性最优化的内点法

An interior point method for nonlinear optimization with a quasi-tangential subproblem

Songqiang Qiu, Zhongwen Chen

摘要:

本文提出了一种求解约束优化问题的内点方法,其特点是利用了拟切线子问题。该算法继承了原始对偶内点方法和Byrd Omojokun的步长分解策略的主要思想。拟切向子问题是通过惩罚切向子问题中的零空间约束得到的。所得到的拟切向步长并不严格位于约束梯度的零空间内。我们还使用了一个线搜索信任漏斗的策略,而不是罚函数或过滤技术,全球化的方法。在标准假设下得到了整体收敛结果。

英文摘要:

In this paper, we proposed an interior point method for constrained optimization, which is characterized by the using of quasi-tangential subproblem. This algorithm follows the main ideas of primal dual interior point methods and Byrd-Omojokun's step decomposition strategy. The quasi-tangential subproblem is obtained by penalizing the null space constraint in the tangential subproblem. The resulted quasi-tangential step is not strictly lying in the null space of the gradients of constraints. We also use a line search trust-funnel-like strategy, instead of penalty function or filter technology, to globalize the method. Global convergence results were obtained under standard assumptions.

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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