They've been working on deep learning for vision longer than that: http://static.googleusercontent.com/external_content/untrusted_dlcp/research.google.com/en/u

They've been working on deep learning for vision longer than that: http://static.googleusercontent.com/external_content/untrusted_dlcp/research.google.com/en/us/archive/unsupervised_icml2012.pdf http://static.googleusercontent.com/external_content/untrust... This is the paper that did unsupervised training of a deep net on frames from YouTube videos, and found it had autonomously developed detectors for, among other things, human faces and cats. Jeff Dean is a coauthor.