ACM RecSys Challenge 2020


The RecSys Challenge 2020 will be organized by Politecnico di Bari, Free University of Bozen-Bolzano, TU Wien, University of Colorado, Boulder, and Universidade Federal de Campina Grande, and sponsored by Twitter. The challenge focuses on a real-world task of tweet engagement prediction in a dynamic environment. The goal is to predict the probability for different types of engagement (Favourite, Reply, Retweet and Quote Tweet) of a target user for a set of tweets, based on heterogeneous input data.

Participation and Data

(dataset coming soon)

Twitter will release a large public dataset of ~200M public tweets, obtained by subsampling within ~2 weeks, that contains engagement features, user features, and tweet features.

A strong point of this challenge are the recent regulations on data protection and privacy, hence the challenge data set will be GDPR compliant: if a user deletes a tweet, or their data from Twitter, the dataset will be updated accordingly within 24 hours. Therefore, for every change in the dataset, the evaluation of the submissions will be re-done, and the leaderboard will be updated with the re-calculated metrics.

Participation for this challenge is subject to the acceptance of these Terms & Conditions

Timeline top

Note: the timeline is subject to slight modifications.

When? What?
March 2, 2020 Dataset Release & RecSys Challenge Starts

Training and validation datasets released

June 1, 2020 Test Dataset Release
June 7, 2020 RecSys Challenge ends
June 15, 2020 Announcement of the final leaderboard and winners Paper submission for RecSys Challenge Workshop
End of June Paper Submission Due
Mid July Paper Acceptance Notifications
September 22-26, 2020 Workshop taking place as part of the ACM RecSys conference in Rio de Janeiro, Brazil.

Paper Submission Guidelines top

Academic Organizers top

Sponsor Mentors top

Advisors top