[Corpora-List] CLEF-2020 CheckThat! Lab: Call for Participation (with COVID-19 tweets) -- extended to June 5, 2020

Preslav Nakov preslav.nakov at gmail.com
Tue Apr 14 11:12:30 CEST 2020

CLEF-2020 CheckThat! Lab: Call for Participation (with COVID-19 tweets) -- extended to June 5, 2020

** Call for Participation **


Link to Lab Registration: http://clef2020-labs-registration.dei.unipd.it/ (Registration deadline: April 26)

Contact: https://groups.google.com/forum/#!forum/clef-factcheck




We invite you to take part in the CLEF-2020 CheckThat! Lab on Automatic Identification and Verification of Claims in Social Media. Three tasks are available in English, one of which features a dataset about COVID-19:

Task 1: Check-Worthiness on Tweets. The task asks to rank a stream of tweets on a number of topics, including COVID-19, according to their check-worthiness. (https://github.com/sshaar/clef2020-factchecking-task1).

Task 2: Verified Claim Retrieval. Given a check-worthy claim and a set of verified claims, rank the verified claims, so that those that verify the input claim (or a sub-claim in it) are ranked on top ( https://github.com/sshaar/clef2020-factchecking-task2).

Task 5: Check-Worthiness on Debates. Given a debate segmented into sentences, together with speaker information, prioritize sentences for fact-checking (https://github.com/sshaar/clef2020-factchecking-task5).

The CheckThat! Lab also has three tasks in Arabic (check the Lab website for details).

The Lab will be held in conjunction with CLEF 2020, which will be an online event.


How to Participate


1. Register for the Fact Checking Lab at http://clef2020-labs-registration.dei.unipd.it/registrationForm.php

2. Join the Google Group for the task: https://groups.google.com/forum/#!forum/clef-factcheck

3. Download the datasets and the tools: https://sites.google.com/view/clef2020-checkthat/

4. Prepare/train your models.

5. Submit your results on the test sets.

6. Submit a paper describing your approach.

7. Participate in the online event to present your work.


Important Dates


March 20 Beginning of the evaluation cycle for the English tasks

April 26 Registration closes

May 25 Test sets released

June 5 System submission deadline

July 17 Paper submission deadline

August 14 Notification of paper acceptance

August 28 Camera-ready paper submission

Sep 22-25 Conference (online event)


English Tasks Organizers


Alex Nikolov, Sofia University

Firoj Alam, QCRI, HBKU

Nikolay Babulkov, Sofia University

Shaden Shaar, QCRI, HBKU

Giovanni Da San Martino, QCRI, HBKU

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