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Kennico
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Least Squares
最小二乘法
今天笔试有一道题目要求实现最小二乘法,但是我因为没有留意到题目只涉及三个系数、两个因变量,最后在想起被数值分析所支配的恐惧中这道题交了白卷 ╮(╯▽╰)╭ 。 Linear regression 线性回归借助若干个统计样本 来确定多元线性函数 中的系数$\mathbf{A}=(a_0, a_1,a_2,\ldots,a_n)^T$。 Least Square Solution...
Posted by Kennico on September 15, 2018
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