Pass Functor to Functions in C++

2020-07-05

Practical algorithm generically applies to a group of functions. For example, It is typical that an integration routine can take different functions as input. Because of the popular usage, this ...

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Inverse Problems on PDEs

2020-04-28

Inverse problems have wide applications on real-world problems. When I was a PhD student in Oak Ridge, I was very excited at one of my researches on inverse problems of Fredholm integral of the ...

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高斯混合模型

2019-07-11

数值计算界的鸿篇巨著Numerical Recipes的第三版(简称NR)有一章专门介绍机器学习的分类算法。笔者最近尝试机器学习,便以此书为入门,记下自己的学习过程。高斯混合模型(Gaussian mixture model)是在机器学习里的一个经典算法。它适用于无监督学习(unsupervised learning)下的聚类问题。本篇主要借鉴(照搬)NR的叙述,从原理出发介绍高斯混合...

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