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/Tasks_Demos/YahooRatings/README.txt by Thierry Bertin-Mahieux (2011) Columbia University firstname.lastname@example.org This folder contains code to link the Yahoo Ratings data with the Million SOng Dataset For Yahoo data: http://webscope.sandbox.yahoo.com/ The most important code links Yahoo artist name with Echo Nest artist ID from the Million Song Dataset See: match_artist_names.py We then count how many ratings these artists cover, see: count_ratings_known_artists.py usage: python count_ratings_known_artists.py \ /YahooData/R1/ydata-ymusic-artist-names-v1_0.txt \ mapping_15780artists.txt \ /YahooData/R1/ydata-ymusic-user-artist-ratings-v1_0.txt Using the artist coverage as of January 10 2011, we cover 91% of the ratings (105215445/115579440 ratings) MISSING ARTISTS remember that you can use The Echo Nest API to get info and track analysis for the artists not covered in the Million Song Dataset. You even have the code to put these artists into this dataset format.