Pytorch tutorial: Loss functions
Deep Learning DIY by Marc Lelarge / marc_lelarge
-slides: https://dataflowr.github.io/website/m...
0:00 Recap
2:25 How to choose your loss?
3:18 A probabilistic model for linear regression
7:50 Gradient descent, learning rate, SGD
11:30 Pytorch code for gradient descent
15:15 A probabilistic model for logistic regression
17:27 Notations (information theory)
20:58 Likelihood for logistic regression
22:43 BCELoss
23:41 BCEWithLogitsLoss
25:37 Beware of the reduction parameter
27:27 Softmax regression
30:52 NLLLoss
34:48 Classification in pytorch
36:36 Why maximizing accuracy directly is hard?
38:24 Classification in deep learning
40:50 Regression without knowing the underlying model
42:58 Overfitting in polynomial regression
45:20 Validation set
48:55 Notion of risk and hypothesis space
54:40 estimation error and approximation error
full course: https://www.dataflowr.com/
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