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Pipelining: chaining a PCA and a logistic regression — scikit-learn 1.7.1 documentation
https://scikit-learn.org/stable/auto_examples/compose/plot_digits_pipe.html
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The PCA does an unsupervised dimensionality reduction, while the logistic regression does the prediction. We use a GridSearchCV to set the dimensionality of the PCA, Total running time of the scrip...
