{"url":"/dataset/jester","name":"Jester (Jokes)","full_name":null,"description_markdown":"6.5 million anonymous ratings of jokes by users of the **Jester** Joke Recommender System.\r\n\r\nSource: [Jester Datasets for Recommender Systems and Collaborative Filtering Research](http://eigentaste.berkeley.edu/dataset/)\r\nImage Source: [http://eigentaste.berkeley.edu/](http://eigentaste.berkeley.edu/)","description_withheld":null,"homepage":"http://eigentaste.berkeley.edu/dataset/","introduced_date":"2001-01-01","introduced_date_note":null,"introduced_by":{"paper":null,"title":"Eigentaste: A Constant Time Collaborative Filtering Algorithm","first_author":null,"url":"https://doi.org/10.1023/A:1011419012209"},"license":{"name":"Custom (research-only)","url":"http://eigentaste.berkeley.edu/dataset/"},"modalities":[{"name":"Texts","url":"/datasets/modality/texts"}],"tasks":[],"languages":[],"variants":["Jester (Jokes)"],"data_loaders":[{"repo":"https://github.com/open-mmlab/mmaction2","url":"https://github.com/open-mmlab/mmaction2/blob/master/tools/data/jester/README.md","frameworks":["pytorch"]}],"num_papers_in_archive":5,"source":{"archive":"pwc-archive (Hugging Face), CC BY-SA 4.0","snapshot":"2025-07-28"},"benchmarks":[],"papers_with_a_benchmark_row":[],"syntology_totals":{"read_at":"2026-09-24T18:15:14+00:00","papers_with_samples":0,"samples_harvested":0,"samples_ran":0,"samples_unverified":0,"pointer_only_for_licence":0,"papers_with_no_sample_that_ran":0,"note":"the per-paper counts above, summed; not a rate"},"papers_note":"The archive never published its papers-using-dataset list; these are papers with a leaderboard row on this dataset's benchmarks."}