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Logistic-Regression-python

更新公式:(不会贴图片,下次更新补上) 出自Ng的ML教程。 推导是由对数似然函数推出目标函数,然后利用梯度下降求解偏导进行更新,似然函数在统计学习方法一书中可以见到,推导可以自己推一遍。

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