User 945 | 11/14/2014, 7:24:23 AM
I was using collaborative filtering library. I ran wals for an implicit feedback dataset with around 2 million users. the problem i face now is if i try to generate top 10 recommendations using rating, then it approximately takes around 15-20 second to generate recommendations for a single user. going this way, it might take many months to run for all 2 million users. can you suggest how this can be made to work faster.