step,n_unique,tfidf,tfidf_p,semantic,semantic_p,chance 1000,1,0.07692307692307693,1.0,0.07692307692307693,1.0,0.07692307692307693 2000,1,0.07692307692307693,1.0,0.07692307692307693,1.0,0.07692307692307693 3000,1,0.07692307692307693,1.0,0.07692307692307693,1.0,0.07692307692307693