Discovery Challenge “Chat Analytics for Twitch” (ChAT)

This Discovery Challenge is part of ECML-PKDD 2020 in Ghent, Belgium. The task is to estimate a user’s subscription status regarding Twitch channels they are interacting with.

Introduction

Streaming platforms for e-sports such as Twitch become more and more popular. Users can stream their gameplay while others watch and comment on the stream. It is also possible to donate to a streamer or subscribe to the channel, which cost monthly fees (4.99$, 9.99$, or 24.99\$). Half of the money goes to the streamer, the other half to Twitch. Thus, there is a monetary motivation for both, streamers and Twitch, to get people to subscribe to a channel. In this challenge, you will build a binary classifier that predicts the subscription status of a user-channel combination based on the comments the user made in this and other channels. Given a model that predicts a user to be subscribed although he or she is not, we can suspect that the user could be interested in a subscription, which could be used for targeted advertising.

The organizers of this discovery challenge are by no means affiliated with Twitch.

Important Dates

This is the (approximate) timeline for this challenge. Further information will be announced in the future. All dates are given in the AoE (anywhere on earth) timezone.

• March 21, 2020: Data will be provided ✅
• April 22 - May 13, 2020: Early Bird evaluation phase ✅
• May 19 - June 9, 2020: Final evaluation phase ✅
• June 10, 2020: Final results are notified to participants ✅
• July 1, 2020: Paper submission due ✅
• July 15, 2020: Author notification
• July 20, 2020: Early Bird Conference Registration Deadline
• August 6, 2020: Camera ready submission due
• September 14-18, 2020: ECML-PKDD 2020

Registration

In order to get important updates, announcements, and being able to submit your results, please register here.

News

• July 2, 2020: The paper submission deadline has ended. We will review the papers in the next two weeks and then notify authors about their acceptance.
• June 13, 2020: All results are final now. We now provide the test data on the Results page in order to analyze your model.
• June 10, 2020: The Final Evaluation Phase has ended. We thank all participants for their submissions. You can find the results of the evaluation on the Results page.
• June 2, 2020: We extended the Final Evaluation phase deadline by one week. You now have time until June 9 for your final submission.
• May 6, 2020: We extended the Early Bird Evaluation phase deadline by one week. You now have time until May 13 for your first submission.
• April 16, 2020: We launched the “Submission to TIRA” page to provide more information for the submission procedure. We also added timeranges to the important dates to make the evaluation phases clearer.
• March 24, 2020: We now provide the evaluation script for the challenge, so you can test under the same conditions as in the final evaluation.