suddenly like say well we know some words are more common than others and that kind of word co-occurrence matrix has that diagonal term which is just the frequencies or counts of words so we could use that instead and you know that would just allow us to say well the word these really comments were going to send more probability mass to it and you know the word supercalifragilisticexpialidocious is just pretty rare so this would be called a unigram model where all we do is we just product proportional to the