## ML: Neural Network and Deep learning

** Written:**

*Machine Learning: An article explores neural network/.* The goal of a feedforward network is to approximate some functionf∗. For example,for a classiﬁer,y=f∗(x) maps an inputxto a categoryy. A feedforward networkdeﬁnes a mappingy=f(x;θ) and learns the value of the parametersθthat resultin the best function approximation.