From paper:

The recent defining moment in computer vision is the smashing victory by Geoff Hinton and his team on the ImageNet Large Scale Visual Recognition Challenge last October.

Geoff Hinton is a giant, it's incredible that he is so productive at a late stage in his career. Everyone who is interested in machine learning should read all his big papers. Unfortunately you have to piece together the elements of his big picture ideas by connecting the dots between several papers; he should really have a book out that summarizes his vision.