2023

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The CLEF-2023 CheckThat! Lab: Checkworthiness, Subjectivity, Political Bias, Factuality, and Authority
Alberto Barrón-Cedeño | Firoj Alam | Tommaso Caselli | Giovanni Da San Martino | Tamer Elsayed | Andrea Galassi | Fatima Haouari | Federico Ruggeri | Julia Maria Struß | Rabindra Nath Nandi | Gullal S. Cheema | Dilshod Azizov | Preslav Nakov
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part III

2022

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Overview of the CLEF-2022 CheckThat! Lab: Task 3 on Fake News Detection
Juliane Köhler | Gautam Kishore Shahi | Julia Maria Struß | Michael Wiegand | Melanie Siegel | Thomas Mandl | Mina Schütz
Proceedings of the Working Notes of CLEF 2022 - Conference and Labs of the Evaluation Forum, Bologna, Italy, September 5th - to - 8th, 2022

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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 | Mücahid 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
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 13th International Conference of the CLEF Association, CLEF 2022, Bologna, Italy, September 5-8, 2022, Proceedings

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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 | Mücahid Kutlu | Wajdi Zaghouani | Chengkai Li | Shaden Shaar | Gautam Kishore Shahi | Hamdy Mubarak | Alex Nikolov | Nikolay Babulkov | Yavuz Selim Kartal | Javier Beltrán
Advances in Information Retrieval - 44th European Conference on IR Research, ECIR 2022, Stavanger, Norway, April 10-14, 2022, Proceedings, Part II

2021

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Overview of the CLEF-2021 CheckThat! Lab on Detecting Check-Worthy Claims, Previously Fact-Checked Claims, and Fake News
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 | Mücahid Kutlu | Yavuz Selim Kartal
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 12th International Conference of the CLEF Association, CLEF 2021, Virtual Event, September 21-24, 2021, Proceedings

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Overview of the CLEF-2021 CheckThat! Lab: Task 3 on Fake News Detection
Gautam Kishore Shahi | Julia Maria Struß | Thomas Mandl
Proceedings of the Working Notes of CLEF 2021 - Conference and Labs of the Evaluation Forum, Bucharest, Romania, September 21st - to - 24th, 2021

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The CLEF-2021 CheckThat! Lab on Detecting Check-Worthy Claims, Previously Fact-Checked Claims, and Fake News
Preslav Nakov | Giovanni Da San Martino | Tamer Elsayed | Alberto Barrón-Cedeño | Rubén Míguez | Shaden Shaar | Firoj Alam | Fatima Haouari | Maram Hasanain | Nikolay Babulkov | Alex Nikolov | Gautam Kishore Shahi | Julia Maria Struß | Thomas Mandl
Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part II