Does PCA pay here
Machine Learning · from Digits — where kNN finally wins
load_digitsflattening imagesKNeighborsClassifiermulti-class confusionPCAPutting the kettle on…
Starting up…
Exercise 3
Does PCA pay here? Return [components_for_90pct, knn_full, knn_on_20_components], scores rounded to 4 places.
your answer
stuck? the lesson behind it
Digits — where kNN finally wins
Images as 64 columns, a 10×10 confusion matrix, and PCA that actually pays