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Neural Networks and Deep Learning

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Presentation on theme: "Neural Networks and Deep Learning"— Presentation transcript:

1 Neural Networks and Deep Learning

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3 How does the brain do it?

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6 If features are complex enough, anything can be classified?

7 Single neurons are not able to solve complex tasks (linear
decision boundaries). More layers of linear units are not enough (still linear).

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13 How can we learn the weights?
Theoretical result [Cybenko, 1989]: 2-layer net with linear output can approximate any continuous function over compact domain to arbitrary accuracy (given enough hidden units!)

14 Why use Deep Multi Layered Models?
Is there a theoretical justification? No

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18 Neural Network examples
Standard NN Convolutional NN Recurrent NN

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29 No closed form solution for the Maximum Likelihood for this
model!

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31 Feed forward Networks

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66 Books and Resources We will mostly follow Deep Learning by Ian Goodfellow,Yoshua Bengio and Aaron Courville (MIT Press, 2016) Stanford CS 231n: by Li, Karpathy & Johnson Neural Networks and Deep Learning by Michael Nielsen Bishop - Pattern Recognition And Machine Learning - Springer 2006 Uncertainty in Deep Learning Yarin Gal Department of Engineering University of Cambridge

67 Books and Resources Probabilistic machine learning and artificial intelligence Zoubin Ghahramani1


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