Jeza Jezahmoud
Jezahmoud
/ weight_update_Huber.py
Created
June 10, 2020 02:11
— forked from KhyatiMahendru/weight_update_Huber.py
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| def update_weights_Huber(m, b, X, Y, delta, learning_rate): | |
| m_deriv = 0 | |
| b_deriv = 0 | |
| N = len(X) | |
| for i in range(N): | |
| # derivative of quadratic for small values and of linear for large values | |
| if abs(Y[i] - m*X[i] - b) <= delta: | |
| m_deriv += -X[i] * (Y[i] - (m*X[i] + b)) | |
| b_deriv += - (Y[i] - (m*X[i] + b)) | |
| else: |