The CLEF-2026 CheckThat! Lab: Advancing Multilingual Fact-Checking
Struß, Julia Maria Schellhammer, Sebastian Dietze, Stefan V., Venktesh Setty, Vinay Chakraborty, Tanmoy Nakov, Preslav Anand, Avishek Chungkham, Primakov Hafid, Salim
Struß, Julia Maria
Schellhammer, Sebastian
Dietze, Stefan
V., Venktesh
Setty, Vinay
Chakraborty, Tanmoy
Nakov, Preslav
Anand, Avishek
Chungkham, Primakov
Hafid, Salim
Supervisor
Department
Natural Language Processing
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Type
Conference proceeding
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Abstract
The CheckThat! lab aims to advance the development of innovative technologies combating disinformation and manipulation efforts in online communication across a multitude of languages and platforms. While in early editions the focus has been on core tasks of the verification pipeline (check-worthiness, evidence retrieval, and verification), in the past three editions, the lab added additional tasks linked to the verification process. In this year’s edition, the verification pipeline is at the center again with the following tasks: Task 1 on source retrieval for scientific web claims (a follow-up of the 2025 edition), Task 2 on fact-checking numerical and temporal claims, which adds a reasoning component to the 2025 edition, and Task 3, which expands the verification pipeline with generation of full-fact-checking articles. These tasks represent challenging classification and retrieval problems as well as generation challenges at the document and span level, including multilingual settings.
Citation
J.M. Struß, S. Schellhammer, S. Dietze, V. V., V. Setty, T. Chakraborty , et al., "The CLEF-2026 CheckThat! Lab: Advancing Multilingual Fact-Checking," 2026, pp. 325-335.
Source
Lecture Notes in Computer Science
Conference
48th European Conference on Information Retrieval, ECIR 2026
Keywords
46 Information and Computing Sciences, 4602 Artificial Intelligence
Subjects
Source
48th European Conference on Information Retrieval, ECIR 2026
Publisher
Springer Nature