I was a bit disappointed that he didn't mention Kohonen's self-organizing maps, another interesting unsupervised method, or independent component analysis, which was also used successfully for image feature extraction.

Som was also used for a similar document mapping task, the demo is online here: http://websom.hut.fi/websom/milliondemo/html/root.html

You're not going to get a more up-to-date state of the field than from Hinton. Plus, their approach works on real world problems - they're consistently at the top of the Netflix leaderboard.

Do you know what the name of his/their team name is?

the making of the 2 and 5 was pretty cool; how far advanced are techniques for content generation?

this makes me want to figure out how to make a neural network.. of the 20% i understood, very interesting.

Programming Collective Intelligence (O'Reilly book) also discusses this along with other AI topics. Everything in the book has fairly straightforward python code demonstrating it as well.

Mitchell's book on Machine Learning is a great introduction.

Search for 'deep belief hinton' on google.

Nice that YouTube's player can finally skip forward.

Now they only need subtitles, and we can finally watch them Microserfs-Style (fast forward while reading the subtitles).

That would be mightily cool and save everyone a lot of time. Aren't there several people on news.yc who work on such a thing (adding content to existing videos)?

try viddler.com