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个人笔记 v5.51-A4 打印版 PDF 中的 7.3 正则化线性回归 #92

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Fightjiang opened this issue Oct 26, 2021 · 6 comments
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@Fightjiang
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个人笔记 v5.51-A4 打印版 PDF 中的 7.3 正则化线性回归中的,正则化线性回归的代价函数是否有误,中括号的位置应该是不对的。

image.png

@WangBangChao
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是的,是错误的,正确的应该是:
$J\left( \theta \right)=\frac{1}{2m}[\sum\limits_{i=1}^{m}{({{({h_\theta}({{x}^{(i)}})-{{y}^{(i)}})}^{2}}+\lambda \sum\limits_{j=1}^{n}{\theta _{j}^{2}})]}$

@yanyiting
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yanyiting commented May 22, 2022 via email

@Enya191113
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Enya191113 commented May 22, 2022 via email

@xiadongdong
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xiadongdong commented May 22, 2022 via email

@sullinger
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sullinger commented May 22, 2022 via email

@WangBangChao
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这项目半夜都有人维护,感动

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6 participants