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sparseAutoencoder.pdf

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CS294A Lecture notes Andrew Ng Sparse autoencoder 1 Introduction Supervised learning is one of the most powerful tools of AI, and has led to automatic zip code recognition, speech recognition, self-driving cars, and a continually improving understanding of the human genome. Despite its sig- nificant successes, supervised learning today is still severely limited. Specifi- cally, most applications of it still require that we manually specify the input features x given to the algorithm. Once a good feature representation is given, a supervised learning…

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