Matti Wiegmann

2025

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Overview of PAN 2025: Voight-Kampff Generative AI Detection, Multilingual Text Detoxification, Multi-author Writing Style Analysis, and Generative Plagiarism Detection.
Janek Bevendorff|Daryna Dementieva|Maik Fröbe|Bela Gipp|André Greiner-Petter|Jussi Karlgren|Maximilian Mayerl|Preslav Nakov|Alexander Panchenko|Martin Potthast|Artem Shelmanov|Efstathios Stamatatos|Benno Stein|Yuxia Wang|Matti Wiegmann|Eva Zangerle
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 16th International Conference of the CLEF Association, CLEF 2025, Madrid, Spain, September 9-12, 2025, Proceedings
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Overview of the "Voight-Kampff" Generative AI Authorship Verification Task at PAN and ELOQUENT 2025.
Janek Bevendorff|Yuxia Wang|Jussi Karlgren|Matti Wiegmann|Maik Fröbe|Akim Tsivgun|Jinyan Su|Zhuohan Xie|Mervat Abassy|Jonibek Mansurov|Rui Xing|Minh Ngoc Ta|Kareem Ashraf Elozeiri|Tianle Gu|Raj Vardhan Tomar|Jiahui Geng|Ekaterina Artemova|Artem Shelmanov|Nizar Habash|Efstathios Stamatatos|Iryna Gurevych|Preslav Nakov|Martin Potthast|Benno Stein
Working Notes of the Conference and Labs of the Evaluation Forum, CLEF 2025, Madrid, Spain, 9-12 September 2025.
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Overview of PAN 2025: Generative AI Detection, Multilingual Text Detoxification, Multi-author Writing Style Analysis, and Generative Plagiarism Detection - Extended Abstract.
Janek Bevendorff|Daryna Dementieva|Maik Fröbe|Bela Gipp|André Greiner-Petter|Jussi Karlgren|Maximilian Mayerl|Preslav Nakov|Alexander Panchenko|Martin Potthast|Artem Shelmanov|Efstathios Stamatatos|Benno Stein|Yuxia Wang|Matti Wiegmann|Eva Zangerle
Advances in Information Retrieval - 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6-10, 2025, Proceedings, Part V
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Web-Scale Retrieval Experimentation with chatnoir-pyterrier.
Jan Heinrich Merker|Janek Bevendorff|Maik Fröbe|Tim Hagen|Harrisen Scells|Matti Wiegmann|Benno Stein|Matthias Hagen|Martin Potthast
Advances in Information Retrieval - 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6-10, 2025, Proceedings, Part V

2024

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Product Spam on YouTube: A Case Study.
Janek Bevendorff|Matti Wiegmann|Martin Potthast|Benno Stein
Proceedings of the 2024 ACM SIGIR Conference on Human Information Interaction and Retrieval, CHIIR 2024, Sheffield, United Kingdom, March 10-14, 2024
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De-noising Document Classification Benchmarks via Prompt-Based Rank Pruning: A Case Study.
Matti Wiegmann|Benno Stein|Martin Potthast
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 15th International Conference of the CLEF Association, CLEF 2024, Grenoble, France, September 9-12, 2024, Proceedings, Part I
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Overview of PAN 2024: Multi-author Writing Style Analysis, Multilingual Text Detoxification, Oppositional Thinking Analysis, and Generative AI Authorship Verification Condensed Lab Overview.
Abinew Ali Ayele|Nikolay Babakov|Janek Bevendorff|Xavier Bonet Casals|Berta Chulvi|Daryna Dementieva|Ashaf Elnagar|Dayne Freitag|Maik Fröbe|Damir Korencic|Maximilian Mayerl|Daniil Moskovskiy|Animesh Mukherjee|Alexander Panchenko|Martin Potthast|Francisco Rangel|Naquee Rizwan|Paolo Rosso|Florian Schneider|Alisa Smirnova|Efstathios Stamatatos|Elisei Stakovskii|Benno Stein|Mariona Taulé|Dmitry Ustalov|Xintong Wang|Matti Wiegmann|Seid Muhie Yimam|Eva Zangerle
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 15th International Conference of the CLEF Association, CLEF 2024, Grenoble, France, September 9-12, 2024, Proceedings, Part II
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Overview of the "Voight-Kampff" Generative AI Authorship Verification Task at PAN and ELOQUENT 2024.
Janek Bevendorff|Matti Wiegmann|Jussi Karlgren|Luise Dürlich|Evangelia Gogoulou|Aarne Talman|Efstathios Stamatatos|Martin Potthast|Benno Stein
Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2024), Grenoble, France, 9-12 September, 2024.
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Is Google Getting Worse? A Longitudinal Investigation of SEO Spam in Search Engines.
Janek Bevendorff|Matti Wiegmann|Martin Potthast|Benno Stein
Advances in Information Retrieval - 46th European Conference on Information Retrieval, ECIR 2024, Glasgow, UK, March 24-28, 2024, Proceedings, Part III
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Overview of PAN 2024: Multi-author Writing Style Analysis, Multilingual Text Detoxification, Oppositional Thinking Analysis, and Generative AI Authorship Verification - Extended Abstract.
Janek Bevendorff|Xavier Bonet Casals|Berta Chulvi|Daryna Dementieva|Ashraf Elnagar|Dayne Freitag|Maik Fröbe|Damir Korencic|Maximilian Mayerl|Animesh Mukherjee|Alexander Panchenko|Martin Potthast|Francisco Rangel|Paolo Rosso|Alisa Smirnova|Efstathios Stamatatos|Benno Stein|Mariona Taulé|Dmitry Ustalov|Matti Wiegmann|Eva Zangerle
Advances in Information Retrieval - 46th European Conference on Information Retrieval, ECIR 2024, Glasgow, UK, March 24-28, 2024, Proceedings, Part VI
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Webis at TREC 2024: Biomedical Generative Retrieval, Retrieval-Augmented Generation, and Tip-of-the-Tongue Tracks.
Maik Fröbe|Lukas Gienapp|Harrisen Scells|Eric Oliver Schmidt|Matti Wiegmann|Martin Potthast|Matthias Hagen
Proceedings of the Thirty-Third Text REtrieval Conference, TREC 2024, Gaithersburg, MD, USA, November 18-22, 2024

2023

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Overview of PAN 2023: Authorship Verification, Multi-Author Writing Style Analysis, Profiling Cryptocurrency Influencers, and Trigger Detection - Condensed Lab Overview.
Janek Bevendorff|Ian Borrego-Obrador|Mara Chinea-Rios|Marc Franco-Salvador|Maik Fröbe|Annina Heini|Krzysztof Kredens|Maximilian Mayerl|Piotr Pezik|Martin Potthast|Francisco Rangel|Paolo Rosso|Efstathios Stamatatos|Benno Stein|Matti Wiegmann|Magdalena Wolska|Eva Zangerle
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 14th International Conference of the CLEF Association, CLEF 2023, Thessaloniki, Greece, September 18-21, 2023, Proceedings
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Overview of the Trigger Detection Task at PAN 2023.
Matti Wiegmann|Magdalena Wolska|Martin Potthast|Benno Stein
Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2023), Thessaloniki, Greece, September 18th to 21st, 2023.
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Overview of PAN 2023: Authorship Verification, Multi-author Writing Style Analysis, Profiling Cryptocurrency Influencers, and Trigger Detection - Extended Abstract.
Janek Bevendorff|Mara Chinea-Rios|Marc Franco-Salvador|Annina Heini|Erik Körner|Krzysztof Kredens|Maximilian Mayerl|Piotr Pezik|Martin Potthast|Francisco Rangel|Paolo Rosso|Efstathios Stamatatos|Benno Stein|Matti Wiegmann|Magdalena Wolska|Eva Zangerle
Advances in Information Retrieval - 45th European Conference on Information Retrieval, ECIR 2023, Dublin, Ireland, April 2-6, 2023, Proceedings, Part III
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Continuous Integration for Reproducible Shared Tasks with TIRA.io.
Maik Fröbe|Matti Wiegmann|Nikolay Kolyada|Bastian Grahm|Theresa Elstner|Frank Loebe|Matthias Hagen|Benno Stein|Martin Potthast
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 PAN 2022: Authorship Verification, Profiling Irony and Stereotype Spreaders, and Style Change Detection.
Janek Bevendorff|Berta Chulvi|Elisabetta Fersini|Annina Heini|Mike Kestemont|Krzysztof Kredens|Maximilian Mayerl|Reynier Ortega-Bueno|Piotr Pezik|Martin Potthast|Francisco Rangel|Paolo Rosso|Efstathios Stamatatos|Benno Stein|Matti Wiegmann|Magdalena Wolska|Eva Zangerle
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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Overview of PAN 2022: Authorship Verification, Profiling Irony and Stereotype Spreaders, Style Change Detection, and Trigger Detection - Extended Abstract.
Janek Bevendorff|Berta Chulvi|Elisabetta Fersini|Annina Heini|Mike Kestemont|Krzysztof Kredens|Maximilian Mayerl|Reyner Ortega-Bueno|Piotr Pezik|Martin Potthast|Francisco Rangel|Paolo Rosso|Efstathios Stamatatos|Benno Stein|Matti Wiegmann|Magdalena Wolska|Eva Zangerle
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 PAN 2021: Authorship Verification, Profiling Hate Speech Spreaders on Twitter, and Style Change Detection.
Janek Bevendorff|Berta Chulvi|Gretel Liz De la Peña Sarracén|Mike Kestemont|Enrique Manjavacas|Ilia Markov|Maximilian Mayerl|Martin Potthast|Francisco Rangel|Paolo Rosso|Efstathios Stamatatos|Benno Stein|Matti Wiegmann|Magdalena Wolska|Eva Zangerle
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 Cross-Domain Authorship Verification Task at PAN 2021.
Mike Kestemont|Enrique Manjavacas|Ilia Markov|Janek Bevendorff|Matti Wiegmann|Efstathios Stamatatos|Benno Stein|Martin Potthast
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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Overview of PAN 2021: Authorship Verification, Profiling Hate Speech Spreaders on Twitter, and Style Change Detection - Extended Abstract.
Janek Bevendorff|Berta Chulvi|Gretel Liz De la Peña Sarracén|Mike Kestemont|Enrique Manjavacas|Ilia Markov|Maximilian Mayerl|Martin Potthast|Francisco Manuel Rangel Pardo|Paolo Rosso|Efstathios Stamatatos|Benno Stein|Matti Wiegmann|Magdalena Wolska|Eva Zangerle
Advances in Information Retrieval - 43rd European Conference on IR Research, ECIR 2021, Virtual Event, March 28 - April 1, 2021, Proceedings, Part II

2020

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Overview of PAN 2020: Authorship Verification, Celebrity Profiling, Profiling Fake News Spreaders on Twitter, and Style Change Detection.
Janek Bevendorff|Bilal Ghanem|Anastasia Giachanou|Mike Kestemont|Enrique Manjavacas|Ilia Markov|Maximilian Mayerl|Martin Potthast|Francisco M. Rangel Pardo|Paolo Rosso|Günther Specht|Efstathios Stamatatos|Benno Stein|Matti Wiegmann|Eva Zangerle
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 11th International Conference of the CLEF Association, CLEF 2020, Thessaloniki, Greece, September 22-25, 2020, Proceedings
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Overview of the Cross-Domain Authorship Verification Task at PAN 2020.
Mike Kestemont|Enrique Manjavacas|Ilia Markov|Janek Bevendorff|Matti Wiegmann|Efstathios Stamatatos|Martin Potthast|Benno Stein
Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020.
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Overview of the Celebrity Profiling Task at PAN 2020.
Matti Wiegmann|Benno Stein|Martin Potthast
Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020.
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Shared Tasks on Authorship Analysis at PAN 2020.
Janek Bevendorff|Bilal Ghanem|Anastasia Giachanou|Mike Kestemont|Enrique Manjavacas|Martin Potthast|Francisco M. Rangel Pardo|Paolo Rosso|Günther Specht|Efstathios Stamatatos|Benno Stein|Matti Wiegmann|Eva Zangerle
Advances in Information Retrieval - 42nd European Conference on IR Research, ECIR 2020, Lisbon, Portugal, April 14-17, 2020, Proceedings, Part II

2019

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Overview of PAN 2019: Bots and Gender Profiling, Celebrity Profiling, Cross-Domain Authorship Attribution and Style Change Detection.
Walter Daelemans|Mike Kestemont|Enrique Manjavacas|Martin Potthast|Francisco M. Rangel Pardo|Paolo Rosso|Günther Specht|Efstathios Stamatatos|Benno Stein|Michael Tschuggnall|Matti Wiegmann|Eva Zangerle
Experimental IR Meets Multilinguality, Multimodality, and Interaction - 10th International Conference of the CLEF Association, CLEF 2019, Lugano, Switzerland, September 9-12, 2019, Proceedings
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Overview of the Celebrity Profiling Task at PAN 2019.
Matti Wiegmann|Benno Stein|Martin Potthast
Working Notes of CLEF 2019 - Conference and Labs of the Evaluation Forum, Lugano, Switzerland, September 9-12, 2019.