Amund Tveit has a nice list about ICLR 2017 papers about unsupervised deep learning
He also references this lecture by Salakhutdinov: Foundations of Unsupervised Deep Learning (Ruslan Salakhutdinov, CMU)
I thought I was following somewhat closely this part of the field. Now I feel like I have been living under a rock.
Stuff that was new to me: