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

2023-10-17 15:29:22 +08:00
parent 4f7453b79c
commit 1ac50a68e8
1 changed files with 9 additions and 0 deletions
--- 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
@@ -1 +1,10 @@
 # Neural Network and Deep Learning
+## Logistic Regression
+$$\begin{align}
+正向传递\\
+z &= w^Tx + b \\
+a &= \sigma(z) \\
+\hat{y} &= L(a) = -ylog(\hat{y}) - (1-y)log(1-\hat{y}) \ \ 其中(\hat{y} = a) \\
+反向传递 \\
+\frac{dL}{da}
+\end{align}$$