logreg Choose either "Logistic Regression" or "Softmax" as the activation function of the output layer. The default setting, 1, corresponds to Logistic Regression and will allow for multiple True concepts (i.e. P > 0.5) to be predicted for a given input. Conversely, specify a value of 0 to implement Softmax if your concepts should be treated as "mutually exclusive" (i.e. only one concept could be correctly assigned to a given input). This will result in each prediction output representing a discrete probability distribution (i.e. all predicted values sum to 1).