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[MRG] implement InstanceHardnessCV#1125
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[MRG] implement InstanceHardnessCV#1125
fritshermans wants to merge18 commits intoscikit-learn-contrib:masterfromfritshermans:instance-hardness-cv
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I made a small change in the way samples with large instance hardness are distributed over the folds. I first sort by label and then by proba before assigning the folds. Documentation is now also created. Let me know if there are questions or if there's something more I can do! |
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As discussed on LinkedIn with@glemaitre, I implemented the InstanceHardnessCV splitter as described in myblog post.
'Instance hardness' refers to the difficulty to classify an instance. The way hard-to-classify instances are distributed over train and test sets has significant effect on the test set performance metrics.
Todo:
examples/folder