subtopic

Activation functions

10 min applied30 min research1 curated resources

Learn the 4 activations you will meet: ReLU (hidden layers, default), Sigmoid (yes/no output), Softmax (multi-class output), Tanh. Without activations, many layers act like one straight line.

Builds on: B18 · Build: Spam Classifier with Probabilities (sigmoid, softmax, cross-entropy)

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