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带调整线搜索方向的变尺度算法
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作者 濮定国 田蔚文 《运筹学杂志》 CSCD 1995年第1期66-70,共5页
为了确保变尺度算法在"坏条件"下的收敛性,本文提出对原算法的线搜索方向作适当地调益的方法,并且证明了带调整线搜索方向的 Broyden 类算法,无论线搜索是否精确,它对连续可微函数是收敛的,对一致凸函数是 Q-超线性收敛的.
关键词 变尺度算法 收敛性 线搜索方向 线性规划
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A LINE SEARCH FILTER SECANT METHOD FOR NONLINEAR EQUALITY CONSTRAINED OPTIMIZATION 被引量:3
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作者 Zhujun WANG Detong ZHU 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2010年第2期343-361,共19页
This paper formulates and analyzes a line search method for general nonlinear equalityconstrained optimization based on filter methods for step acceptance and secant methods for searchdirection.The feature of the new ... This paper formulates and analyzes a line search method for general nonlinear equalityconstrained optimization based on filter methods for step acceptance and secant methods for searchdirection.The feature of the new algorithm is that the secant algorithm is used to produce a searchdirection,a backtracking line search procedure is used to generate step size,some filtered rules areused to determine step acceptance,second order correction technique is used to reduce infeasibility andovercome the Maratos effect.Global convergence properties of this method are analyzed:under mildassumptions it is showed that every limit point of the sequence of iterates generated by the algorithmis feasible,and that there exists at least one limit point that is a stationary point for the problem.Moreover,it is also established that the Maratos effect can be overcome in our new approach by addingsecond order correction steps so that fast local superlinear convergence to a second order sufficient localsolution is achieved.Finally,the results of numerical experiments are reported to show the effectivenessof the line search filter secant method. 展开更多
关键词 Filter method nonlinear programming secant algorithm second order correction.
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