Python ではじめる辞書学習 #1

Presentation slides at Hannnari Python #3
https://hannari-python.connpass.com/event/77366/

Transcript

1. Python ではじめる辞書学習 #1 2018年2月16日 はんなり Python #3 @ウィングス京都
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13. 1$" # run PCA from sklearn.decomposition import PCA pca = PCA(n_components=n_components, svd_solver='randomized’, whiten=True) pca.fit(X_train) # reconstruct original space code = pca.transform(sample.reshape(1, -1)) reconstructed = pca.inverse_transform(code)
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18. *$" # run ICA from sklearn.decomposition import FastPCA ica = FastICA(n_components=n_components, whiten=True) ica.fit(X_train) # reconstruct original space code = ica.transform(sample.reshape(1, -1)) reconstructed = ica.inverse_transform(code)
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22. /.' # run NMF from sklearn.decomposition import NMF nmf = NMF(n_components=n_components) W = nmf.fit_transform(X_train) H = nmf.components_ # reconstruct original image code = nmf.transform(sample.reshape(1, -1)) reconstructed = nmf.inverse_transform(code)
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