question: private Vec feedForward ( Vec input ) { Vec x = input ; for ( int i = 0 ; i < Ws . size ( ) ; i ++ ) { Matrix W_i = Ws . get ( i ) ; Vec b_i = bs . get ( i ) ; Vec a_i = W_i . multiply ( x ) ; a_i . mutableAdd ( b_i ) ; a_i . applyFunction ( f ) ; x = a_i ; } return x ; }
target:  Feeds an input through the network