Space: Apache Mahout (https://cwiki.apache.org/confluence/display/MAHOUT) Page: Collaborative Filtering with ALS-WR (https://cwiki.apache.org/confluence/display/MAHOUT/Collaborative+Filtering+with+ALS-WR) Comment: https://cwiki.apache.org/confluence/display/MAHOUT/Collaborative+Filtering+with+ALS-WR?focusedCommentId=30149773#comment-30149773
Comment added by Sebastian Schelter: --------------------------------------------------------------------- Please use the user mailing list to ask questions (http://mahout.apache.org/mailinglists.html#Mahout%20User%20List). The wiki is not the right place for that. You get an error because you need to supply the path to the downloaded data (you need to replace /path/to/ratings.dat!!!), as we are not allowed to redistribute the dataset. In reply to a comment by Yuanshuai Sun: I can't pass the test with the shell file examples/bin/factorize-movielens-1M.sh which throws NullPointerException when I type in "sh factorize-movielens-1M.sh path/to/ratings.dat", I wonder the answer. Can some guys help me? Change your notification preferences: https://cwiki.apache.org/confluence/users/viewnotifications.action
