======================= hetrec2011-movielens-2k ======================= ------- Version ------- Version 1.0 (May 2011) ----------- Description ----------- This dataset is an extension of MovieLens10M dataset, published by GroupLeans research group. http://www.grouplens.org It links the movies of MovieLens dataset with their corresponding web pages at Internet Movie Database (IMDb) and Rotten Tomatoes movie review systems. http://www.imdb.com http://www.rottentomatoes.com From the original dataset, only those users with both rating and tagging information have been mantained. The dataset is released in the framework of the 2nd International Workshop on Information Heterogeneity and Fusion in Recommender Systems (HetRec 2011) http://ir.ii.uam.es/hetrec2011 at the 5th ACM Conference on Recommender Systems (RecSys 2011) http://recsys.acm.org/2011 --------------- Data statistics --------------- 2113 users 10197 movies 20 movie genres 20809 movie genre assignments avg. 2.040 genres per movie 4060 directors 95321 actors avg. 22.778 actors per movie 72 countries 10197 country assignments avg. 1.000 countries per movie 47899 location assignments avg. 5.350 locations per movie 13222 tags 47957 tag assignments (tas), i.e. tuples [user, tag, movie] avg. 22.696 tas per user avg. 8.117 tas per movie 855598 ratings avg. 404.921 ratings per user avg. 84.637 ratings per movie ----- Files ----- * movies.dat This file contains information about the movies of the database. The original movie information -title and year- available at MovieLens10M dataset has been extended with public data provided in IMDb and Rotten Tomatoes websites: - Titles in Spanish - IMDb movie ids - IMDb picture URLs - Rotten Tomatoes movie ids - Rotten Tomatoes picture URLs - Rotten Tomatoes (all/top) critics' ratings, avg. scores, numbers of reviews/fresh_scores/rotten_scores - Rotten Tomatoes audience' avg. ratings, number of ratings, avg. scores * movie_genres.dat This file contains the genres of the movies. * movie_directors.dat This file contains the directors of the movies. * movie_actors.dat This file contains the main actores and actresses of the movies. A ranking is given to the actors of each movie according to the order in which they appear on the movie IMDb cast web page. * movie_countries.dat This file contains the countries of origin of the movies. * movie_locations.dat This file contains filming locations ot the movies. * tags.dat This file contains the set of tags available in the dataset. * user_taggedmovies.dat - user_taggedmovies-timestamps.dat These files contain the tag assignments of the movies provided by each particular user. They also contain the timestamps when the tag assignments were done. * movie_tags.dat This file contains the tags assigned to the movies, and the number of times the tags were assigned to each movie. * user_ratedmovies.dat - user_ratedmovies-timestamps.dat These files contain the ratings of the movies provided by each particular user. They also contain the timestamps when the ratings were provided. ----------- Data format ----------- The data is formatted one entry per line as follows (tab separated, "\t"): * movies.dat id \t title \t imdbID \t spanishTitle \t imdbPictureURL \t year \t rtID \t rtAllCriticsRating \t rtAllCriticsNumReviews \t rtAllCriticsNumFresh \t rtAllCriticsNumRotten \t rtAllCriticsScore \t rtTopCriticsRating \t rtTopCriticsNumReviews \t rtTopCriticsNumFresh \t rtTopCriticsNumRotten \t rtTopCriticsScore \t rtAudienceRating \t rtAudienceNumRatings \t rtAudienceScore \t rtPictureURL Example: 1 Toy story 0114709 Toy story (juguetes) http://ia.media-imdb.com/images/M/MV5BMTMwNDU0NTY2Nl5BMl5BanBnXkFtZTcwOTUxOTM5Mw@@._V1._SX214_CR0,0,214,314_.jpg 1995 toy_story 9 73 73 0 100 8.5 17 17 0 100 3.7 102338 81 http://content7.flixster.com/movie/10/93/63/10936393_det.jpg * movie_genres.dat movieID \t genre Example: 1 Adventure * movie_directors.dat movieID \t directorID \t directorName Example: 1 john_lasseter John Lasseter * movie_actors.dat movieID \t actorID \t actorName \t ranking Example: 1 annie_potts Annie Potts 10 * movie_countries.dat movieID \t country Example: 1 USA * movie_locations.dat movieID \t location1 \t location2 \t location3 \t location4 Example: 2 Canada British Columbia Vancouver * tags.dat id \t value Example: 1 earth * movie_tags.dat movieID \t tagID \t tagWeight Example: 1 13 3 * user_taggedmovies-timestamps.dat userID \t movieID \t tagID \t timestamp Example: 75 353 5290 1162160415000 * user_taggedmovies.dat userID \t movieID \t tagID \t date_day \t date_month \t date_year \t date_hour \t date_minute \t date_second Example: 75 353 5290 29 10 2006 23 20 15 * user_ratedmovies-timestamps.dat userID \t movieID \t rating \t timestamp Example: 75 3 1 1162160236000 * user_ratedmovies.dat userID \t movieID \t rating \t date_day \t date_month \t date_year \t date_hour \t date_minute \t date_second Example: 75 3 1 29 10 2006 23 17 16 ------- License ------- The data contained in hetrec2011-movielens-2k.zip is distributed with permission of GroupLens research group. The data is made available for non-commercial use. Those interested in using the data in a commercial context should contact GroupLens members: http://www.grouplens.org/contact ---------------- Acknowledgements ---------------- We thank GroupLens research group at University of Minessota (http://www.grouplens.org) for hosting and allowing us to publish this dataset, which is an extension of MovieLens10M dataset. This work was supported by the Spanish Ministry of Science and Innovation (TIN2008-06566-C04-02), and the Regional Government of Madrid (S2009TIC-1542). ---------- References ---------- When using this dataset you should cite: - the original Movielens dataset from GroupLens research group, http://www.grouplens.org - IMDb website, http://www.imdb.com - Rotten Tomatoes website, http://www.rottentomatoes.com You may also cite HetRec'11 workshop as follows: @inproceedings{Cantador:RecSys2011, author = {Cantador, Iv\'{a}n and Brusilovsky, Peter and Kuflik, Tsvi}, title = {2nd Workshop on Information Heterogeneity and Fusion in Recommender Systems (HetRec 2011)}, booktitle = {Proceedings of the 5th ACM conference on Recommender systems}, series = {RecSys 2011}, year = {2011}, location = {Chicago, IL, USA}, publisher = {ACM}, address = {New York, NY, USA}, keywords = {information heterogeneity, information integration, recommender systems}, } ------- Credits ------- This dataset was built by Iván Cantador with the collaboration of Alejandro Bellogín and Ignacio Fernández-Tobías, members of the Information Retrieval group at Universidad Autonoma de Madrid (http://ir.ii.uam.es) ------- Contact ------- Iván Cantador, ivan [dot] cantador [at] uam [dot] es