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Update pytorch_feedforward_neuralnetwork.md #15

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2 changes: 1 addition & 1 deletion docs/deep_learning/practical_pytorch/pytorch_feedforward_neuralnetwork.md
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Expand Up @@ -86,7 +86,7 @@ LogisticRegressionModel(
- A scaled sigmoid function
- Input number $\rightarrow$ [-1, 1]
- Cons:
1. Activation saturates at 0 or 1 with **gradients $\approx$ 0**
1. Activation saturates at -1 or 1 with **gradients $\approx$ 0**
- No signal to update weights $\rightarrow$ **cannot learn**
- **Solution**: Have to carefully initialize weights to prevent this

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