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Erschienen in:
Audio Features, Precomputed for Podcast Retrieval and Information Access Experiments Kapitel lesen Erstes Kapitel lesen

2021 | OriginalPaper | Buchkapitel

Overview of the CLEF–2021 CheckThat! Lab on Detecting Check-Worthy Claims, Previously Fact-Checked Claims, and Fake News

verfasst von : Preslav Nakov, Giovanni Da San Martino, Tamer Elsayed, Alberto Barrón-Cedeño, Rubén Míguez, Shaden Shaar, Firoj Alam, Fatima Haouari, Maram Hasanain, Watheq Mansour, Bayan Hamdan, Zien Sheikh Ali, Nikolay Babulkov, Alex Nikolov, Gautam Kishore Shahi, Julia Maria Struß, Thomas Mandl, Mucahid Kutlu, Yavuz Selim Kartal

Erschienen in: Experimental IR Meets Multilinguality, Multimodality, and Interaction

Verlag: Springer International Publishing

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Abstract

We describe the fourth edition of the CheckThat! Lab, part of the 2021 Conference and Labs of the Evaluation Forum (CLEF). The lab evaluates technology supporting tasks related to factuality, and covers Arabic, Bulgarian, English, Spanish, and Turkish. Task 1 asks to predict which posts in a Twitter stream are worth fact-checking, focusing on COVID-19 and politics (in all five languages). Task 2 asks to determine whether a claim in a tweet can be verified using a set of previously fact-checked claims (in Arabic and English). Task 3 asks to predict the veracity of a news article and its topical domain (in English). The evaluation is based on mean average precision or precision at rank k for the ranking tasks, and macro-F\(_1\) for the classification tasks. This was the most popular CLEF-2021 lab in terms of team registrations: 132 teams. Nearly one-third of them participated: 15, 5, and 25 teams submitted official runs for tasks 1, 2, and 3, respectively.

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Metadaten
Titel
Overview of the CLEF–2021 CheckThat! Lab on Detecting Check-Worthy Claims, Previously Fact-Checked Claims, and Fake News
verfasst von
Preslav Nakov
Giovanni Da San Martino
Tamer Elsayed
Alberto Barrón-Cedeño
Rubén Míguez
Shaden Shaar
Firoj Alam
Fatima Haouari
Maram Hasanain
Watheq Mansour
Bayan Hamdan
Zien Sheikh Ali
Nikolay Babulkov
Alex Nikolov
Gautam Kishore Shahi
Julia Maria Struß
Thomas Mandl
Mucahid Kutlu
Yavuz Selim Kartal
Copyright-Jahr
2021
Buch
Experimental IR Meets Multilinguality, Multimodality, and Interaction

Print ISBN: 978-3-030-85250-4

Electronic ISBN: 978-3-030-85251-1

Copyright-Jahr: 2021

DOI
https://doi.org/10.1007/978-3-030-85251-1_19

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