Emma Kerinec & Nicolas Derumigny
TODO: cortana subgroup discovery -> in python : https://github.com/p1mps/subgroup-discovery closed patterns only : tune the apriori algorithme ? sklearn function maps words : with sklearn.feature_extraction.text.HashingVectorizer -> http://scikit-learn.org/stable/modules/generated/sklearn.feature_extraction.text.HashingVectorizer.html#sklearn.feature_extraction.text.HashingVectorizer filter word list : stopwords : done