Reviews: Coupled Generative Adversarial Networks

I am in two minds about the paper. On the one hand the idea seems very interesting and powerful as it does not seem to rely on pairs of corresponding training images. The authors make a good effort of demonstrating and analyzing the capabilities of the approach in several ways (I especially like the unsupervised domain adaptation results). Visually the results look promising. But on the other hand, it seems to me that the task is not well defined. Since the the model is never presented with corresponding image pairs there is actually nothing in the training data that establishes what "corresponding" means.