Reviews: Distributed Flexible Nonlinear Tensor Factorization

REVIEW The results in Figure 2 look quite good, but why? Is it because kernelization or is it because of the simpler covariance structure? Overall no explanation on why the method performs better is given. Timing comparisons with the other factorizations are not presented, so is the method faster? If not, what happens if we increase the ranks for the other methods.