Linear Regression

English Version pytorch
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http://d2l.ai/chapter_linear-networks/linear-regression.html

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  • b = mean(x), when derivative of ∑i(xi−b)2 equals 0,.
  • MLE (maximum likelihood estimation).
  • When each parameter’s partial derivative of lnL equals 0, we can get the optimal value.
    概率论与数理统计.浙大第四版 P154
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    y=mean(W_T*X)+b, W_T,X:matrix, *:matrix multiply
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