I am sorry, but does anyone else have the impression that a lot of people is commenting here with so much confidence while clearly not knowing anything about the topic? It takes almost an equivalent of an undergraduate mathematics degree and than a lot of experience in ML itself to get a decent understanding how things like Deep Belief Networks work, so I don't wonder none of the comments so far hinted at any understanding of anything particular about deep learning, just general derogatory comments "not used in industry", "overhyped", pointers to whatever someone heard in an undergraduate ML class on older types of networks etc.
Maybe if you don't have anything on topic to say, just do not comment? You really are not obliged to have an opinion on everything.
Maybe if you don't have anything on topic to say, just do not comment? You really are not obliged to have an opinion on everything.
(Waiting for the downvotes)