Self-Taught Learning to Deep Networks
From Ufldl
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In the previous section, you used an autoencoder to learn features that were then fed as input | In the previous section, you used an autoencoder to learn features that were then fed as input | ||
to a softmax or logistic regression classifier. In that method, the features were learned using | to a softmax or logistic regression classifier. In that method, the features were learned using | ||
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the learned features using labeled data. When you have a large amount of labeled | the learned features using labeled data. When you have a large amount of labeled | ||
training data, this can significantly improve your classifier's performance. | training data, this can significantly improve your classifier's performance. | ||
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In self-taught learning, we first trained a sparse autoencoder on the unlabeled data. Then, | In self-taught learning, we first trained a sparse autoencoder on the unlabeled data. Then, |