How to write our own Loss function in Deep neural network layers.

I have to implement this unsupervised DNN network and a loss function given in figures. How I can introduce this loss function into my last layer in Matlab? Anycan can please guide.

Answer 1

[Mohammad Sami]

You can first check if the loss function is already available in Matlab here.

https://www.mathworks.com/help/deeplearning/ug/define-custom-training-loops-loss-functions-and-networks.html#mw_1e1e702a-95f2-411a-a85c-b2060c2a5734

If its not available you can create your own custom loss function by creating a Classification or Regression layer based on the following tutorial.

https://www.mathworks.com/help/deeplearning/ug/define-custom-classification-output-layer.html

https://www.mathworks.com/help/deeplearning/ug/define-custom-regression-output-layer.html