Non-linear activation Perceptron Inputs Linear sigmoid Combiner 2) Threshold o( is a non-linear activation function, sigmoid was the most popular one aEWx,tw,xat b o(y)= 1+e o(a7 Non-linear activation Perceptron 𝑎 = 𝑤1𝑥1 + 𝑤2𝑥2 + 𝑏 𝑏 𝑠𝑖𝑔𝑚𝑜𝑖𝑑 𝑌 = 𝜎(𝑎ሻ