Overview of the CLEF–2022 CheckThat! Lab on Fighting the COVID-19 Infodemic and Fake News Detection

Preslav Nakov*, Alberto Barrón-Cedeño, Giovanni da San Martino, Firoj Alam, Julia Maria Struß, Thomas Mandl, Rubén Míguez, Tommaso Caselli, Mucahid Kutlu, Wajdi Zaghouani, Chengkai Li, Shaden Shaar, Gautam Kishore Shahi, Hamdy Mubarak, Alex Nikolov, Nikolay Babulkov, Yavuz Selim Kartal, Michael Wiegand, Melanie Siegel, Juliane Köhler

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

50 Citations (Scopus)
292 Downloads (Pure)

Abstract

We describe the fifth edition of the CheckThat! lab, part of the 2022 Conference and Labs of the Evaluation Forum (CLEF). The lab evaluates technology supporting tasks related to factuality in multiple languages: Arabic, Bulgarian, Dutch, English, German, Spanish, and Turkish. Task 1 asks to identify relevant claims in tweets in terms of check-worthiness, verifiability, harmfullness, and attention-worthiness. Task 2 asks to detect previously fact-checked claims that could be relevant to fact-check a new claim. It targets both tweets and political debates/speeches. Task 3 asks to predict the veracity of the main claim in a news article. CheckThat! was the most popular lab at CLEF-2022 in terms of team registrations: 137 teams. More than one-third (37%) of them actually participated: 18, 7, and 26 teams submitted 210, 37, and 126 official runs for tasks 1, 2, and 3, respectively.

Original languageEnglish
Title of host publicationExperimental IR Meets Multilinguality, Multimodality, and Interaction - 13th International Conference of the CLEF Association, CLEF 2022, Proceedings
EditorsAlberto Barrón-Cedeño, Giovanni Da San Martino, Guglielmo Faggioli, Nicola Ferro, Mirko Degli Esposti, Fabrizio Sebastiani, Craig Macdonald, Gabriella Pasi, Allan Hanbury, Martin Potthast
PublisherSpringer Science and Business Media Deutschland GmbH
Pages495-520
Number of pages26
ISBN (Print)9783031136429
DOIs
Publication statusPublished - 2022
Event13th International Conference of the Cross-Language Evaluation Forum for European Languages, CLEF 2022 - Bologna, Italy
Duration: 5-Sept-20228-Sept-2022

Publication series

NameLecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics)
Volume13390 LNCS
ISSN (Print)0302-9743
ISSN (Electronic)1611-3349

Conference

Conference13th International Conference of the Cross-Language Evaluation Forum for European Languages, CLEF 2022
Country/TerritoryItaly
CityBologna
Period05/09/202208/09/2022

Keywords

  • Check-Worthiness
  • COVID-19
  • Disinformation
  • Fact-Checking
  • Fake News
  • Misinformation
  • Verified Claim Retrieval

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