vault backup: 2023-10-17 15:29:22

2023-10-17 15:29:22 +08:00
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commit 1ac50a68e8
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--- a/Study/DL/吴恩达深度学习课程/Lesson
+++ b/Study/DL/吴恩达深度学习课程/Lesson
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 # Neural Network and Deep Learning
 ## Logistic Regression
 $$\begin{align}
 正向传递\\
 z &= w^Tx + b \\
 a &= \sigma(z) \\
 \hat{y} &= L(a) = -ylog(\hat{y}) - (1-y)log(1-\hat{y}) \ \ 其中(\hat{y} = a) \\
 反向传递 \\
 \frac{dL}{da}
 \end{align}$$