why is term frequency weight normalized how to normalize term frequency for clustering how to normalize a term frequency should tf frequencies be normalized why do you have to normalize tf frequency should term frequency be normalized what term frequency should be normalized for clustering what is the term frequency what is the term frequency in a cluster what is tf mean normalize term frequency what is term frequency when is term frequency normalized? how to calculate term frequency should term frequency be normalized how normalize term frequency what is tf frequency normalization why would term frequency be normalized what term frequency weights clustered clustering? what to do with term frequency in clustering