From fe038a4046b31318b4d9604832003c444f856c31 Mon Sep 17 00:00:00 2001 From: Paul Mineiro Date: Sat, 21 Dec 2013 21:25:36 -0800 Subject: movielens demo --- demo/movielens/README.md | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/demo/movielens/README.md b/demo/movielens/README.md index 9a92d98a..1410ffbd 100755 --- a/demo/movielens/README.md +++ b/demo/movielens/README.md @@ -26,7 +26,7 @@ of flattery. - `make shootout`: eventually produces three results indicating test MAE (mean absolute error) on movielens-1M for - linear: a model without any interactions. basically this creates a user bias and item bias fit. this is a surprisingly strong baseline in terms of MAE, but is useless for recommendation as it induces the same item ranking for all users. It achieves test MAE of 0.733 (at the time of this writing). - lrq: the linear model augmented with rank-5 interactions between users and movies, aka, "five latent factors". It achieves test MAE of 0.716. I determined that 5 was the best number to use through experimentation. - - lrqdropout: the linear model augmented with rank-10 interactions between users and movies, and trained with dropout. It achieves test MAE of 0.693. Dropout effectively halves the number of latent factors, and unsurprisingly 10 factors seem to work best. + - lrqdropout: the linear model augmented with rank-10 interactions between users and movies, and trained with dropout. It achieves test MAE of 0.693. Dropout effectively halves the number of latent factors, so unsurprisingly 10 factors seem to work best. - the first time you invoke `make shootout` there is a lot of other output. invoking it a second time will allow you to just see the cached results. Details about how `vw` is invoked is in the `Makefile`. -- cgit v1.2.3