7.10
线性回归:
一个点 \(x = (x_1,x_2,...,x_n) \in \mathcal{R}^n, y \in \mathcal{R}\)
\(\hat{y} = w^{T} x\)
均方误差:
\(MSE = \frac{1}{m} \sum_{i=1}^m (y_i - \hat{y_i})^2\)
一个点 \(x = (x_1,x_2,...,x_n) \in \mathcal{R}^n, y \in \mathcal{R}\)
\(\hat{y} = w^{T} x\)
均方误差:
\(MSE = \frac{1}{m} \sum_{i=1}^m (y_i - \hat{y_i})^2\)