add script to load movielens data
add bibliography
add collaborative filtering recommender systems to bibliography
explaining collaborative filtering recommendations added to bibliography
transform.py creates a full matrix out of u.data. u.data is a sparse matrix. it's easier to start with a full matrix.
fetchdata requests movielens data an unzips it in ml-100k dir. i dont want data in my repository
firstfivelines.py writes the first 5 lines out. i dont have to work with 2mb
notes are stored in collaborative filtering .org