Softsign Activation
Softsign Activation
**Softsign** is an activation function for neural networks:

$$ f\left(x\right) = \left(\frac{x}{|x|+1}\right)$$

Image Source: [Sefik Ilkin Serengil](https://sefiks.com/2017/11/10/softsign-as-a-neural-networks-activation-function/)