I think father-daughter and mother-son is interesting too. Did they run something like TF-IDF to normalize for popular occupations? https://en.wikipedia.org/w

I think father-daughter and mother-son is interesting too. Did they run something like TF-IDF to normalize for popular occupations? https://en.wikipedia.org/wiki/Tf%E2%80%93idf https://en.wikipedia.org/wiki/Tf%E2%80%93idf