Datasets

Declaration

The datasets that we crawled are originally used in our own research and published papers. We make them public and accessible as they may benefit more people's research. Please cite our papers as an appreciation of our efforts in data collection, if you find they are useful to your research.

FilmTrust

FilmTrust is a small dataset crawled from the entire FilmTrust website in June, 2011 [download].

ratings.txt: 35497 item ratings w format: userId, movieId, movieRating
trust.txt: 1853 directed trust ratings w format: trustorId, trusteeId, trustRating

@INPROCEEDINGS{guo2013novel,
  author = {Guo, G. and Zhang, J. and Yorke-Smith, N.},
  title = {A Novel Bayesian Similarity Measure for Recommender Systems},
  booktitle = {Proceedings of the 23rd International Joint Conference on Artificial Intelligence (IJCAI)},
  year = {2013},
  pages = {2619-2625}
}

CiaoDVD

CiaoDVD is a dataset crawled from the entire category of DVDs from the dvd.ciao.co.uk website in December, 2013 [download].

movie-ratings.txt: 72.7K movie ratings w format: userId, movieId, movie-categoryId, reviewId, movieRating, reviewDate
review-ratings: 1.6M ratings to the movie reviews w format: userId, reviewId, reviewRating (helpfulness)
trusts.txt: 40K directed trust ratings w format: trustorId, trusteeId, trustRating

@INPROCEEDINGS{guo2014etaf,
  author = {Guo, G. and Zhang, J. and Thalmann, D. and Yorke-Smith, N.},
  title = {ETAF: An Extended Trust Antecedents Framework for Trust Prediction},
  booktitle = {Proceedings of the 2014 International Conference on Advances in Social Networks Analysis and Mining (ASONAM)},
  pages = {540-547},
  year = {2014}
}

Random

To generate a small sample of random data, you can use the [data generator] that we designed.

A Short List of Recommendation Data Sets

More data sets will be added to the following table.

Data Set	Basic Meta					User Context			Other Contexts
Data Set	Users	Items	Ratings (Scale)		Density	Users	Links (Type)		Items	Labels
Ciao	7,375	99,746	278,483	[1, 5]	0.0379%	7,375	111,781	Trust	General
Douban	129,490	58,541	16,830,839	[1, 5]	0.222%	129,490	1,692,952	Friendship	Movie
Epinions (665K)	40,163	139,738	664,824	[1, 5]	0.0118%	49,289	487,183	Trust	General
Epinions (510K)	71,002	104,356	508,960	[1, 5]	0.00687%			Trust	General
Epinions (Extended)	120,492	755,760	13,668,320	[1, 5]	0.015%			Trust Distrust	General
Flixster	147,612	48,794	8,196,077	[0.5, 5.0]	0.1138%	787,213	11,794,648	Friendship	Movie
FilmTrust	1,508	2,071	35,497	[0.5, 4.0]	1.14%	1,642	1,853	Trust	Movie
Jester	59,132	140	1,761,439	Explicit	21.28%				Joke
MovieLens 100K	943	1,682	100,000	[1, 5]	6.30%				Movie	Tag
MovieLens 1M	6,040	3,706	1,000,209	[1, 5]	4.47%				Movie	Tag
MovieLens 10M	71,567	10,681	10,000,054	[1, 5]	1.308%				Movie	Tag