A function to return the L2 regularisation strategy for a network object.
L2_regularisation(alpha)
list containing functions to evaluate the cost modifier and grandient modifier
parameter to weight the relative contribution of the regulariser
Ian Goodfellow, Yoshua Bengio, Aaron Courville, Francis Bach. Deep Learning. (2016)
Terrence J. Sejnowski. The Deep Learning Revolution (The MIT Press). (2018)
Neural Networks YouTube playlist by 3brown1blue: https://www.youtube.com/playlist?list=PLZHQObOWTQDNU6R1_67000Dx_ZCJB-3pi
http://neuralnetworksanddeeplearning.com/
network, train, L1_regularisation, no_regularisation