I would like to know how to define a complex objective function using or-tools (if it is possible). The basic example below shows how to have basic linear problem with Or-tools in python: solver ...

GAN originally proposed by IJ Goodfellow uses following loss function, D_loss = - log[D(X)] - log[1 - D(G(Z))] G_loss = - log[D(G(Z))] So, discriminator tries to minimize D_loss and generator t...

When I trained my neural network with Theano or Tensorflow, they will report a variable called "loss" per epoch. How should I interpret this variable? Higher loss is better or worse, or what...

I would like to add the kappa evaluation metric to use in xgboost in Python. I am having trouble understanding how to connect a Python function with xgboost. According to the xgboost documentation...

What is the difference between objective and feval in xgboost in R? I know this is something very fundamental but I am unable to exactly define them/ their purpose. Also, what is a softmax objecti...