def build_model_c(): title = default_vectorizer(preprocessor=get_preprocessor('headline')) body = default_vectorizer() ft = FeatureUnion([ ('title', title), ('body', body), ], transformer_weights={ 'title': 1.2, 'body': 1, }) return Pipeline([ ('vect', ft), ('select', default_select()), ('clf', default_classifier()), ])