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Deep Learning reads Wikipedia and discovers the meaning of life – Geoff Hinton.

The above quote is from a very interesting talk by Geoffrey Hinton I had the chance to attend recently.

I have been at a summer school on Deep Neural Nets and Unsupervised Featured Learning at the Institute for Pure and Applied Mathematics at UCLA since July 9 (till July 27). It has been organized by Geoff Hinton, Yoshua Bengio, Stan Osher, Andrew Ng and Yann LeCun.

I have always been a “fan” of Neural Nets and the recent spike in interest in them has made me excited, thus the school happened at just the right time. The objective of the summer school is to give a broad overview of some of the recent work in Deep Learning and Unsupervised Feature Learning with emphasis on optimization, deep architectures and sparse representations. I must add that after getting here and looking at the peer group I would consider myself lucky to have obtained funding for the event!

[Click on the above image to see slides for the talks. Videos will be added at this location after July 27 Videos are now available]

That aside, if you are interested in Deep Learning or Neural Networks in general, the slides for the talks are being uploaded over here (or click on the image above), videos will be added at the same location some time after the summer school ends so you might like to bookmark this link.

The school has been interesting given the wide range of people who are here. The diversity of opinions about Deep Learning itself has given a good perspective on the subject and the issues and strengths of it. There are quite a few here who are somewhat skeptical of deep learning but are curious, while there are some who have been actively working on the same for a while. Also, it has been enlightening to see completely divergent views between some of the speakers on key ideas such as sparsity. For example Geoff Hinton had a completely different view of why sparsity was useful in classification tasks than compared to Stéphane Mallat, who gave a very interesting talk today even joking that “Hinton and Yann LeCun told you why sparsity is useful, I’ll tell you why sparsity is useless. “. See the above link for more details.

Indeed, such opinions do tell you that there is a lot of fecund ground for research in these areas.

I have been compiling a reading list on some of this stuff and will make a blog-post on the same soon.

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