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带有势约束的组合最优化的一种解法
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作者 曲铁平 里莉 《沈阳理工大学学报》 CAS 2015年第3期67-69,共3页
从经典的马克维茨投资组合问题引出一个一般的组合最优化模型,并给出此模型的一个解法.首先,由拉格朗日分解从原模型的对偶问题得出一个二阶锥规化的松弛.其次,给出一个新的含混合整数二次约束的二次规化的改进.最后,证明了此改进的连... 从经典的马克维茨投资组合问题引出一个一般的组合最优化模型,并给出此模型的一个解法.首先,由拉格朗日分解从原模型的对偶问题得出一个二阶锥规化的松弛.其次,给出一个新的含混合整数二次约束的二次规化的改进.最后,证明了此改进的连续松弛问题比原问题的连续松弛问题更紧. 展开更多
关键词 拉格朗日分解 二阶锥规化 组合最优
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EXTENSION OF SMOOTHING NEWTON ALGORITHMS TO SOLVE LINEAR PROGRAMMING OVER SYMMETRIC CONES 被引量:3
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作者 Zhenghai HUANG Xiaohong LIU 《Journal of Systems Science & Complexity》 SCIE EI CSCD 2011年第1期195-206,共12页
There recently has been much interest in studying some optimization problems over symmetric cones. This paper deals with linear programming over symmetric cones (SCLP). The objective here is to extend the Qi-Sun-Zho... There recently has been much interest in studying some optimization problems over symmetric cones. This paper deals with linear programming over symmetric cones (SCLP). The objective here is to extend the Qi-Sun-Zhou's smoothing Newton algorithm to solve SCLP, where characterization of symmetric cones using Jordan algebras forms the fundamental basis for our analysis. By using the theory of Euclidean Jordan algebras, the authors show that the algorithm is globally and locally quadratically convergent under suitable assumptions. The preliminary numerical results for solving the second-order cone programming are also reported. 展开更多
关键词 Euclidean Jordan algebra linear programming smoothing algorithm symmetric cone.
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