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A Brief Overview of Deep Learning

Deep Learning is really popular these days. Big and small companies are getting into it and making money off it. It’s hot. There is some substance to the hype, too: large deep neural networks achieve the best results on speech recognition, visual object recognition, and several language related tasks, such as machine translation and language modeling.

But why? What’s so special about deep learning? (from now on, we shall use the term Large Deep Neural Networks — LDNN — which is what the vaguer term “Deep Learning” mostly refers to). Why does it work now, and how does it differ from neural networks of old? Finally, suppose you want to train an LDNN. Rumor has it that it’s very difficult to do so, that it is “black magic” that requires years of experience.

Source: yyue.blogspot.in
Author: Yisong Yue

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