ERROR: A regression layer must not be preceded by a softmax layer.

hello, I want to ask why a regression layer must not be preceded by a softmax layer? If I want to add a softmaxlayer before regressionlayer, what should I do?

Answer 1

[Greg Heath]

Softmax is designed to be a classifier output component that yields a classification probability output with components in [0 1 ] and column sums of 1.

Combining the output of multiple classifiers is the only configuration I can think of where the softmax layer may not be the output layer.

Hope this helps.

Thank you for formally accepting my answer

Greg

[Rotem Mairon]

This is true, I think. However, if you try to run a network with the last layer being softmax, in Matlab you would get the following error message: "Missing output layer. The network must have one output layer." So how can one use softmax as output?

Thanks for your time.