Description Usage Format Details References Examples
The data set contains the anonymous ratings data from the Jester Online Joke Recommender System collected between April 1999 and May 2003.
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The format is: Formal class 'realRatingMatrix' [package "recommenderlab"]
24983 x 100 rating matrix (24983 users and 100 jokes) with 1,810,455 ratings between -10.00 and +10.00. All selected users have rated 15 or more jokes.
The text for the jokes are also available as a character vector of length 100
via data{Jester_text}
.
Ken Goldberg, Theresa Roeder, Dhruv Gupta, and Chris Perkins. "Eigentaste: A Constant Time Collaborative Filtering Algorithm." Information Retrieval, 4(2), 133-151. July 2001.
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