def tfidf_pipeline(df, ngram_range, lowercase, binary, min_df=2, max_df=1.0, caps_features=False, pos_features=False, clf=LinearSVC()):
return Pipeline([
('mapper', mapper(df, ngram_range, lowercase, binary, min_df, max_df, caps_features, pos_features)),
('scaler', TfidfTransformer()),
('clf', clf),
])
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