what is demographic data in collaborative filter can demographic information be added to a matrix in item based collaborative filter? how to add demographic to the user matrix how to add user demographic to a recommendation matrix is there a matrix to add demographic data can you add demographics to a matrix in a recommendation system can users of a matrix be added to item matrix can you add demographic data to the matrix of occurrence and association? can you use demographic information in a collaborative filter recommendation is it possible to add demographic information to the matrix in a recommendation system? add demographics data to item based collaborative filter can a demographics matrix be used for recommendation can a demographic matrix be used for a recommendation how to add demographics to matrix cf can you add demographics to the matrix can you add demographic information to occurrence matrix can you add demographic information to recommendation matrix how can demographic data be added to item matrix can you add demographics in product matrix what can demographic data be added to a matrix