text: Authors provide an interesting loss function approach for clustering using a deep neural network.  They optimize Kuiper-based nonparametric loss and apply the approach on a large social network data-set.   However, the details of the deep learning approach are not well described.  Some specific comments are given below. 1.Further details on use of 10-fold cross validation need to be discussed including over-fitting aspect. 2. Details on deep learning, number of hidden layers, number of hidden units, activation functions, weight adjustment details on each learning methods should be included. 3. Conclusion section is very brief  and can be expanded by including a discussion on results comparison and  over fitting aspects in cross validation.  Use of Kuiper-based nonparametric loss should also be justified as there are other loss functions can be used under these settings.