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首页> 外文期刊>Journal of applied and industrial mathematics >Comparative Study of Two Fast Algorithms for Projecting a Point to the Standard Simplex
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Comparative Study of Two Fast Algorithms for Projecting a Point to the Standard Simplex

机译:两种将点投影到标准单纯形的快速算法的比较研究

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摘要

We consider two algorithms for orthogonal projection of a point to the standard simplex. These algorithms are fundamentally different; however, they are related to each other by the following fact: When one of them has the maximum run time, the run time of the other is minimal. Some particular domains are presented whose points are projected by the considered algorithms in the minimum and maximum number of iterations. The correctness of the conclusions is confirmed by the numerical experiments independently implemented in the MatLab environment and the Java programming language.
机译:我们考虑将点正交投影到标准单纯形的两种算法。这些算法根本不同。但是,它们通过以下事实相互关联:当其中一个具有最大的运行时间时,另一个的运行时间最小。提出了一些特定的域,这些域的点由所考虑的算法以最小和最大迭代次数进行投影。结论的正确性由在MatLab环境和Java编程语言中独立实施的数值实验证实。

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