These loss functions aren't listed: https://github.com/eclipse/deeplearning4j/blob/master/nd4j/nd4j-backends/nd4j-api-parent/nd4j-api/src/main/java/org/nd4j/linalg/lossfunctions/LossFunctions.java#L29-L50 https://deeplearning4j.org/docs/latest/deeplearning4j-cheat-sheet