Category: scikit-learn
#denoising #dictionary learning #scikit-learn
I am presenting an image denoising example that fully runs under my local scikits-learn fork. Coming soon near you!
The 400 square pixels area covering Lena’s face was distorted by additive gaussian noise with a standard deviation of 50 (pixel values are ranged 0-256.)
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The dictionary contains 100 atoms …
Category: scikit-learn
#dictionary learning #pca #sparse pca #SparsePCA #spca #scikit-learn
I have been working on the integration into the scikits.learn codebase of a sparse principal components analysis (SparsePCA) algorithm coded by Gaël and Alexandre and based on [[1]][]. Because the name “sparse PCA” has some inherent ambiguity, I will describe in greater depth what problem we are actually solving …
Category: scikit-learn
#nlp #scikit-learn
Scikits.learn is a great general library, but machine learning has so many different application, that it is often very helpful to be able to extend its API to better integrate with your code. With scikits.learn, this is extremely easy to do using inheritance and using the pipeline module …