Recommendation Datasets

Datasets used for recommender systems research purposes come from various domains, in different sizes and with different means of expressing user actions. The table below shows a comparison of some of the more common datasets for recommendation.

Dataset	Domain	No. of user actions	User actions	No of users	License
MovieLens 100k	Movies	100 k	ratings	1k	custom
MovieLens 1M	Movies	1 M	ratings	6k	custom
MovieLens 10M	Movies	10 M/100k	ratings/tag assignments	72k	custom
MovieLens 20M	Movies	20 M/645k	ratings tag/assignments	138k	custom
MovieTweetings	Movies	200k	ratings	25k	custom

See also

• Recommendation Software