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How do I obtain filters from convolutional neural network(CNN)? My idea is something like this: do random images of the input images (28x28) and get random patches (8x8). Then use autoencoders to learn the common features of the patches (features = hidden units; approximately 100, for example). Then apply features filters to the input images and do convolution. Am I correct?

I am confused because sometime the literature state only using like, e.g. 8, filters, but in my case I have 100.

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  • $\begingroup$ What's the CNN's output? I.e. what's the learning task? $\endgroup$ – Franck Dernoncourt Jan 3 '16 at 16:30
  • $\begingroup$ @FranckDernoncourt let say the output is classifying 10 digits. $\endgroup$ – RockTheStar Jan 5 '16 at 2:51
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Convolutional filters are usually trained along with the rest of the network weights. The Tensorflow tutorial is a good place to start understanding convolutional neural networks in practice. https://www.tensorflow.org/versions/r1.0/get_started/mnist/beginners

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