Preslav Nakov

2026

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Overview of PAN 2026: Voight-Kampff Generative AI Detection, Text Watermarking, Multi-author Writing Style Analysis, Generative Plagiarism Detection, and Reasoning Trajectory Detection.

Janek Bevendorff|Maik Fröbe|André Greiner-Petter|Andreas Jakoby|Maximilian Mayerl|Preslav Nakov|Henry Plutz|Martin Potthast|Benno Stein|Minh Ngoc Ta|Yuxia Wang|Eva Zangerle

Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part IV

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ImageCLEF 2026: Multimodal Challenges in Medicine, Science, Agritech, and Security.

Bogdan Ionescu|Henning Müller|Dan-Cristian Stanciu|Ahmedkhan Radzhabov|Alba García Seco de Herrera|Alexandra-Georgiana Andrei|Alexandra Baicoianu|Ana Neacsu|Andrea M. Storås|Asma Ben Abacha|Benjamin Bracke|Lea Reinartz|Benjamin Lecouteux|Christoph M. Friedrich|Cynthia Sabrina Schmidt|Corneliu Florea|Diandra Fabre|Didier Schwab|Dimitar Dimitrov|Emmanuelle Esperança-Rodier|Mihai Gabriel Constantin|Hendrik Damm|Henning Schäfer|Ivan Koychev|Josiane Mothe|Liviu-Daniel Stefan|Maja J. Hjuler|Mehmet Kurt|Meliha Yetisgen|Michael A. Riegler|Mihai Dogariu|Mihai Ivanovici|Ming Shan Hee|Mohammad El Sakka|Momina Ahsan|Obioma Pelka|Pål Halvorsen|Preslav Nakov|Raphael Brüngel|Sarfraz Ahmad|Steven Alexander Hicks|Sushant Gautam|Tabea Margareta Grace Pakull|Bahadir Eryilmaz|Vajira Thambawita|Vassili Kovalev|Wen-Wai Yim|Yuri Prokopchuk|Zhuohan Xie

Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part IV

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The CLEF-2026 FinMMEval Lab: Multilingual and Multimodal Evaluation of Financial AI Systems.

Zhuohan Xie|Rania Elbadry|Fan Zhang|Georgi Georgiev|Xueqing Peng|Lingfei Qian|Jimin Huang|Dimitar Dimitrov|Vanshikaa Jani|Yuyang Dai|Jiahui Geng|Yuxia Wang|Ivan Koychev|Veselin Stoyanov|Preslav Nakov

Advances in Information Retrieval - 48th European Conference on Information Retrieval, ECIR 2026, Delft, The Netherlands, March 29 - April 2, 2026, Proceedings, Part IV

2025

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Overview of the CLEF-2025 CheckThat! Lab: Subjectivity, Fact-Checking, Claim Normalization, and Retrieval.

Firoj Alam|Julia Maria Struß|Tanmoy Chakraborty|Stefan Dietze|Salim Hafid|Katerina Korre|Arianna Muti|Preslav Nakov|Federico Ruggeri|Sebastian Schellhammer|Vinay Setty|Megha Sundriyal|Konstantin Todorov|Venktesh V

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 ImageCLEF 2025: Multimedia Retrieval in Medical, Social Media and Content Recommendation Applications.

Bogdan Ionescu|Henning Müller|Dan-Cristian Stanciu|Alexandra-Georgiana Andrei|Ahmedkhan Radzhabov|Yuri Prokopchuk|Liviu-Daniel Stefan|Mihai Gabriel Constantin|Mihai Dogariu|Vassili Kovalev|Hendrik Damm|Johannes Rückert|Asma Ben Abacha|Alba Garcia Seco de Herrera|Christoph M. Friedrich|Louise Bloch|Raphael Brüngel|Ahmad Idrissi-Yaghir|Henning Schäfer|Cynthia Sabrina Schmidt|Tabea Margareta Grace Pakull|Benjamin Bracke|Obioma Pelka|Bahadir Eryilmaz|Helmut Becker|Wen-Wai Yim|Noel Codella|Roberto A. Novoa|Josep Malvehy|Dimitar Dimitrov|Rocktim Jyoti Das|Zhuohan Xie|Ming Shan Hee|Preslav Nakov|Ivan Koychev|Steven Alexander Hicks|Sushant Gautam|Michael A. Riegler|Vajira Thambawita|Pål Halvorsen|Diandra Fabre|Cécile Macaire|Benjamin Lecouteux|Didier Schwab|Martin Potthast|Maximilian Heinrich|Johannes Kiesel|Moritz Wolter|Sharat Anand|Benno Stein

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 ImageCLEF 2025 - Multimodal Reasoning.

Dimitar Dimitrov|Ming Shan Hee|Zhuohan Xie|Rocktim Jyoti Das|Momina Ahsan|Sarfraz Ahmad|Nikolay Paev|Ivan Koychev|Preslav Nakov

Working Notes of the Conference and Labs of the Evaluation Forum, CLEF 2025, Madrid, Spain, 9-12 September 2025.

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ContextDrift at ImageCLEF 2025 Multimodal Reasoning: Evaluating VLMs' Multimodal, Multilingual and Multidomain Reasoning Capabilities via Thinking Budget Variations and Textual Augmentation.

Vasilena T. Krazheva|Diana Markova|Dimitar Dimitrov|Ivan Koychev|Preslav Nakov

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 the CLEF-2025 CheckThat! Lab Task 2 on Claim Normalization.

Megha Sundriyal|Tanmoy Chakraborty|Preslav Nakov

Working Notes of the Conference and Labs of the Evaluation Forum, CLEF 2025, Madrid, Spain, 9-12 September 2025.

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Zero-Shot Reasoning with BLIP and SmolLM.

Elena Tosheva|Dimitar Dimitrov|Ivan Koychev|Preslav Nakov

Working Notes of the Conference and Labs of the Evaluation Forum, CLEF 2025, Madrid, Spain, 9-12 September 2025.

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Enhancing FEVER-Style Claim Fact-Checking Against Wikipedia: A Diagnostic Taxonomy and a Generative Framework.

Anton Chernyavskiy|Dmitry Ilvovsky|Preslav Nakov

Advances in Information Retrieval - 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6-10, 2025, Proceedings, Part I

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The CLEF-2025 CheckThat! Lab: Subjectivity, Fact-Checking, Claim Normalization, and Retrieval.

Firoj Alam|Julia Maria Struß|Tanmoy Chakraborty|Stefan Dietze|Salim Hafid|Katerina Korre|Arianna Muti|Preslav Nakov|Federico Ruggeri|Sebastian Schellhammer|Vinay Setty|Megha Sundriyal|Konstantin Todorov|Venktesh V

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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ImageCLEF 2025: Multimedia Retrieval in Medical, Social Media and Content Recommendation Applications.

Bogdan Ionescu|Henning Müller|Dan-Cristian Stanciu|Ahmad Idrissi-Yaghir|Ahmedkhan Radzhabov|Alba García Seco de Herrera|Alexandra Andrei|Andrea M. Storås|Asma Ben Abacha|Benjamin Bracke|Benjamin Lecouteux|Benno Stein|Cécile Macaire|Christoph M. Friedrich|Cynthia Sabrina Schmidt|Diandra Fabre|Didier Schwab|Dimitar Dimitrov|Emmanuelle Esperança-Rodier|Mihai Gabriel Constantin|Helmut Becker|Hendrik Damm|Henning Schäfer|Ivan Rodkin|Ivan Koychev|Johannes Kiesel|Johannes Rückert|Josep Malvehy|Liviu-Daniel Stefan|Louise Bloch|Martin Potthast|Maximilian Heinrich|Michael A. Riegler|Mihai Dogariu|Noel Codella|Pål Halvorsen|Preslav Nakov|Raphael Brüngel|Roberto A. Novoa|Rocktim Jyoti Das|Steven Alexander Hicks|Sushant Gautam|Tabea Margareta Grace Pakull|Vajira Thambawita|Vassili Kovalev|Wen-Wai Yim|Zhuohan Xie

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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Mirela at CheckThat! 2024: Check-worthiness of Tweets with Multilingual Embeddings and Adversarial Training.

Mirela Dryankova|Dimitar Dimitrov|Ivan Koychev|Preslav Nakov

Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2024), Grenoble, France, 9-12 September, 2024.

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Overview of the CLEF-2024 CheckThat! Lab Task 1 on Check-Worthiness Estimation of Multigenre Content.

Maram Hasanain|Reem Suwaileh|Sanne Weering|Chengkai Li|Tommaso Caselli|Wajdi Zaghouani|Alberto Barrón-Cedeño|Preslav Nakov|Firoj Alam

Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2024), Grenoble, France, 9-12 September, 2024.

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Overview of the CLEF-2024 CheckThat! Lab Task 2 on Subjectivity in News Articles.

Julia Maria Struß|Federico Ruggeri|Alberto Barrón-Cedeño|Firoj Alam|Dimitar Dimitrov|Andrea Galassi|Georgi Pachov|Ivan Koychev|Preslav Nakov|Melanie Siegel|Michael Wiegand|Maram Hasanain|Reem Suwaileh|Wajdi Zaghouani

Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2024), Grenoble, France, 9-12 September, 2024.

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The CLEF-2024 CheckThat! Lab: Check-Worthiness, Subjectivity, Persuasion, Roles, Authorities, and Adversarial Robustness.

Alberto Barrón-Cedeño|Firoj Alam|Tanmoy Chakraborty|Tamer Elsayed|Preslav Nakov|Piotr Przybyla|Julia Maria Struß|Fatima Haouari|Maram Hasanain|Federico Ruggeri|Xingyi Song|Reem Suwaileh

Advances in Information Retrieval - 46th European Conference on Information Retrieval, ECIR 2024, Glasgow, UK, March 24-28, 2024, Proceedings, Part V

2023

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Overview of the CLEF-2023 CheckThat! Lab Task 1 on Check-Worthiness in Multimodal and Multigenre Content.

Firoj Alam|Alberto Barrón-Cedeño|Gullal S. Cheema|Gautam Kishore Shahi|Sherzod Hakimov|Maram Hasanain|Chengkai Li|Rubén Míguez|Hamdy Mubarak|Wajdi Zaghouani|Preslav Nakov

Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2023), Thessaloniki, Greece, September 18th to 21st, 2023.

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Frank at CheckThat!-2023: Detecting the Political Bias of News Articles and News Media.

Dilshod Azizov|Preslav Nakov|Shangsong Liang

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 the CLEF-2023 CheckThat! Lab Task 3 on Political Bias of News Articles and News Media.

Giovanni Da San Martino|Firoj Alam|Maram Hasanain|Rabindra Nath Nandi|Dilshod Azizov|Preslav Nakov

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 the CLEF-2023 CheckThat! Lab Task 4 on Factuality of Reporting of News Media.

Preslav Nakov|Firoj Alam|Giovanni Da San Martino|Maram Hasanain|Dilshod Azizov|Rabindra Nath Nandi|Panayot Panayotov

Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2023), Thessaloniki, Greece, September 18th to 21st, 2023.

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Gpachov at CheckThat!-2023: A Diverse Multi-approach Ensemble for Subjectivity Detection in News Articles.

Georgi Pachov|Dimitar Dimitrov|Ivan Koychev|Preslav Nakov

Working Notes of the Conference and Labs of the Evaluation Forum (CLEF 2023), Thessaloniki, Greece, September 18th to 21st, 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

doi dblp

Learning Through Interpolative Augmentation of Dynamic Curvature Spaces.

Parth Chhabra|Atula Tejaswi Neerkaje|Shivam Agarwal|Ramit Sawhney|Megh Thakkar|Preslav Nakov|Sudheer Chava

Proceedings of the 46th International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2023, Taipei, Taiwan, July 23-27, 2023

2022

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Overview of the CLEF-2022 CheckThat! Lab Task 1 on Identifying Relevant Claims in Tweets.

Preslav Nakov|Alberto Barrón-Cedeño|Giovanni Da San Martino|Firoj Alam|Rubén Míguez|Tommaso Caselli|Mücahid Kutlu|Wajdi Zaghouani|Chengkai Li|Shaden Shaar|Hamdy Mubarak|Alex Nikolov|Yavuz Selim Kartal

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 Task 2 on Detecting Previously Fact-Checked Claims.

Preslav Nakov|Giovanni Da San Martino|Firoj Alam|Shaden Shaar|Hamdy Mubarak|Nikolay Babulkov

Proceedings of the Working Notes of CLEF 2022 - Conference and Labs of the Evaluation Forum, Bologna, Italy, September 5th - to - 8th, 2022.

doi dblp

Leaf: Multiple-Choice Question Generation.

Kristiyan Vachev|Momchil Hardalov|Georgi Karadzhov|Georgi Georgiev|Ivan Koychev|Preslav Nakov

Advances in Information Retrieval - 44th European Conference on IR Research, ECIR 2022, Stavanger, Norway, April 10-14, 2022, Proceedings, Part II

doi dblp

Towards Suicide Ideation Detection Through Online Conversational Context.

Ramit Sawhney|Shivam Agarwal|Atula Tejaswi Neerkaje|Nikolaos Aletras|Preslav Nakov|Lucie Flek

SIGIR '22: The 45th International ACM SIGIR Conference on Research and Development in Information Retrieval, Madrid, Spain, July 11 - 15, 2022

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Half-Day Tutorial on Combating Online Hate Speech: The Role of Content, Networks, Psychology, User Behavior, etc.

Sarah Masud|Pinkesh Pinkesh|Amitava Das|Manish Gupta|Preslav Nakov|Tanmoy Chakraborty

WSDM '22: The Fifteenth ACM International Conference on Web Search and Data Mining, Virtual Event / Tempe, AZ, USA, February 21 - 25, 2022

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Fact-Checking, Fake News, Propaganda, Media Bias, and the COVID-19 Infodemic.

Preslav Nakov|Giovanni Da San Martino|Firoj Alam

WSDM '22: The Fifteenth ACM International Conference on Web Search and Data Mining, Virtual Event / Tempe, AZ, USA, February 21 - 25, 2022

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Accepted Tutorials at The Web Conference 2022.

Riccardo Tommasini|Senjuti Basu Roy|Xuan Wang|Hongwei Wang|Heng Ji|Jiawei Han|Preslav Nakov|Giovanni Da San Martino|Firoj Alam|Markus Schedl|Elisabeth Lex|Akash Bharadwaj|Graham Cormode|Milan Dojchinovski|Jan Forberg|Johannes Frey|Pieter Bonte|Marco Balduini|Matteo Belcao|Emanuele Della Valle|Junliang Yu|Hongzhi Yin|Tong Chen|Haochen Liu|Yiqi Wang|Wenqi Fan|Xiaorui Liu|Jamell Dacon|Lingjuan Lyu|Jiliang Tang|Aristides Gionis|Stefan Neumann|Bruno Ordozgoiti|Simon Razniewski|Hiba Arnaout|Shrestha Ghosh|Fabian M. Suchanek|Lingfei Wu|Yu Chen|Yunyao Li|Bang Liu|Filip Ilievski|Daniel Garijo|Hans Chalupsky|Pedro A. Szekely|Ilias Kanellos|Dimitris Sacharidis|Thanasis Vergoulis|Nurendra Choudhary|Nikhil Rao|Karthik Subbian|Srinivasan H. Sengamedu|Chandan K. Reddy|Friedhelm Victor|Bernhard Haslhofer|George Katsogiannis-Meimarakis|Georgia Koutrika|Shengmin Jin|Danai Koutra|Reza Zafarani|Yulia Tsvetkov|Vidhisha Balachandran|Sachin Kumar|Xiangyu Zhao|Bo Chen|Huifeng Guo|Yejing Wang|Ruiming Tang|Yang Zhang|Wenjie Wang|Peng Wu|Fuli Feng|Xiangnan He

Companion of The Web Conference 2022, Virtual Event / Lyon, France, April 25 - 29, 2022

2021

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WhatTheWikiFact: Fact-Checking Claims Against Wikipedia.

Anton Chernyavskiy|Dmitry Ilvovsky|Preslav Nakov

CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

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Fake News, Disinformation, Propaganda, and Media Bias.

Preslav Nakov|Giovanni Da San Martino

CIKM '21: The 30th ACM International Conference on Information and Knowledge Management, Virtual Event, Queensland, Australia, November 1 - 5, 2021

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Aschern at CLEF CheckThat! 2021: Lambda-Calculus of Fact-Checked Claims.

Anton Chernyavskiy|Dmitry Ilvovsky|Preslav Nakov

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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DIPS at CheckThat! 2021: Verified Claim Retrieval.

Simona Mihaylova|Iva Borisova|Dzhovani Chemishanov|Preslav Hadzhitsanev|Momchil Hardalov|Preslav Nakov

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 the CLEF-2021 CheckThat! Lab Task 1 on Check-Worthiness Estimation in Tweets and Political Debates.

Shaden Shaar|Maram Hasanain|Bayan Hamdan|Zien Sheikh Ali|Fatima Haouari|Alex Nikolov|Mücahid Kutlu|Yavuz Selim Kartal|Firoj Alam|Giovanni Da San Martino|Alberto Barrón-Cedeño|Rubén Míguez|Javier Beltrán|Tamer Elsayed|Preslav Nakov

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 the CLEF-2021 CheckThat! Lab Task 2 on Detecting Previously Fact-Checked Claims in Tweets and Political Debates.

Shaden Shaar|Fatima Haouari|Watheq Mansour|Maram Hasanain|Nikolay Babulkov|Firoj Alam|Giovanni Da San Martino|Tamer Elsayed|Preslav Nakov

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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BeaSku at CheckThat! 2021: Fine-Tuning Sentence BERT with Triplet Loss and Limited Data.

Beata Skuczynska|Shaden Shaar|Jennifer Spenader|Preslav Nakov

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

2020

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FANG: Leveraging Social Context for Fake News Detection Using Graph Representation.

Van-Hoang Nguyen|Kazunari Sugiyama|Preslav Nakov|Min-Yen Kan

CIKM '20: The 29th ACM International Conference on Information and Knowledge Management, Virtual Event, Ireland, October 19-23, 2020

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Overview of CheckThat! 2020: Automatic Identification and Verification of Claims in Social Media.

Alberto Barrón-Cedeño|Tamer Elsayed|Preslav Nakov|Giovanni Da San Martino|Maram Hasanain|Reem Suwaileh|Fatima Haouari|Nikolay Babulkov|Bayan Hamdan|Alex Nikolov|Shaden Shaar|Zien Sheikh Ali

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 CheckThat! 2020i Arabic: Automatic Identification and Verification of Claims in Social Media.

Maram Hasanain|Fatima Haouari|Reem Suwaileh|Zien Sheikh Ali|Bayan Hamdan|Tamer Elsayed|Alberto Barrón-Cedeño|Giovanni Da San Martino|Preslav Nakov

Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020.

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Team Alex at CLEF CheckThat! 2020: Identifying Check-Worthy Tweets With Transformer Models.

Alex Nikolov|Giovanni Da San Martino|Ivan Koychev|Preslav Nakov

Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020.

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Overview of CheckThat! 2020 English: Automatic Identification and Verification of Claims in Social Media.

Shaden Shaar|Alex Nikolov|Nikolay Babulkov|Firoj Alam|Alberto Barrón-Cedeño|Tamer Elsayed|Maram Hasanain|Reem Suwaileh|Fatima Haouari|Giovanni Da San Martino|Preslav Nakov

Working Notes of CLEF 2020 - Conference and Labs of the Evaluation Forum, Thessaloniki, Greece, September 22-25, 2020.

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CheckThat! at CLEF 2020: Enabling the Automatic Identification and Verification of Claims in Social Media.

Alberto Barrón-Cedeño|Tamer Elsayed|Preslav Nakov|Giovanni Da San Martino|Maram Hasanain|Reem Suwaileh|Fatima Haouari

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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Proppy: Organizing the news based on their propagandistic content.

Alberto Barrón-Cedeño|Israa Jaradat|Giovanni Da San Martino|Preslav Nakov

Information Processing and Management 2019 Volume 56 Issue 5

doi dblp

Overview of the CLEF-2019 CheckThat! Lab: Automatic Identification and Verification of Claims.

Tamer Elsayed|Preslav Nakov|Alberto Barrón-Cedeño|Maram Hasanain|Reem Suwaileh|Giovanni Da San Martino|Pepa Atanasova

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 CLEF-2019 CheckThat! Lab: Automatic Identification and Verification of Claims. Task 1: Check-Worthiness.

Pepa Atanasova|Preslav Nakov|Georgi Karadzhov|Mitra Mohtarami|Giovanni Da San Martino

Working Notes of CLEF 2019 - Conference and Labs of the Evaluation Forum, Lugano, Switzerland, September 9-12, 2019.

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Overview of the CLEF-2019 CheckThat! Lab: Automatic Identification and Verification of Claims. Task 2: Evidence and Factuality.

Maram Hasanain|Reem Suwaileh|Tamer Elsayed|Alberto Barrón-Cedeño|Preslav Nakov

Working Notes of CLEF 2019 - Conference and Labs of the Evaluation Forum, Lugano, Switzerland, September 9-12, 2019.

doi dblp

CheckThat! at CLEF 2019: Automatic Identification and Verification of Claims.

Tamer Elsayed|Preslav Nakov|Alberto Barrón-Cedeño|Maram Hasanain|Reem Suwaileh|Giovanni Da San Martino|Pepa Atanasova

Advances in Information Retrieval - 41st European Conference on IR Research, ECIR 2019, Cologne, Germany, April 14-18, 2019, Proceedings, Part II

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Evaluating Variable-Length Multiple-Option Lists in Chatbots and Mobile Search.

Pepa Atanasova|Georgi Karadzhov|Yasen Kiprov|Preslav Nakov|Fabrizio Sebastiani

Proceedings of the 42nd International ACM SIGIR Conference on Research and Development in Information Retrieval, SIGIR 2019, Paris, France, July 21-25, 2019.

2018

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Overview of the CLEF-2018 CheckThat! Lab on Automatic Identification and Verification of Political Claims.

Preslav Nakov|Alberto Barrón-Cedeño|Tamer Elsayed|Reem Suwaileh|Lluís Màrquez|Wajdi Zaghouani|Pepa Atanasova|Spas Kyuchukov|Giovanni Da San Martino

Experimental IR Meets Multilinguality, Multimodality, and Interaction - 9th International Conference of the CLEF Association, CLEF 2018, Avignon, France, September 10-14, 2018, Proceedings

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Overview of the CLEF-2018 CheckThat! Lab on Automatic Identification and Verification of Political Claims. Task 1: Check-Worthiness.

Pepa Atanasova|Lluís Màrquez|Alberto Barrón-Cedeño|Tamer Elsayed|Reem Suwaileh|Wajdi Zaghouani|Spas Kyuchukov|Giovanni Da San Martino|Preslav Nakov

Working Notes of CLEF 2018 - Conference and Labs of the Evaluation Forum, Avignon, France, September 10-14, 2018.

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Overview of the CLEF-2018 CheckThat! Lab on Automatic Identification and Verification of Political Claims. Task 2: Factuality.

Alberto Barrón-Cedeño|Tamer Elsayed|Reem Suwaileh|Lluís Màrquez|Pepa Atanasova|Wajdi Zaghouani|Spas Kyuchukov|Giovanni Da San Martino|Preslav Nakov

Working Notes of CLEF 2018 - Conference and Labs of the Evaluation Forum, Avignon, France, September 10-14, 2018.

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An Ensemble-Rich Multi-Aspect Approach Towards Robust Style Change Detection: Notebook for PAN at CLEF 2018.

Dimitrina Zlatkova|Daniel Kopev|Kristiyan Mitov|Atanas Atanasov|Momchil Hardalov|Ivan Koychev|Preslav Nakov

Working Notes of CLEF 2018 - Conference and Labs of the Evaluation Forum, Avignon, France, September 10-14, 2018.

2017

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The Case for Being Average: A Mediocrity Approach to Style Masking and Author Obfuscation - (Best of the Labs Track at CLEF-2017).

Georgi Karadzhov|Tsvetomila Mihaylova|Yasen Kiprov|Georgi Georgiev|Ivan Koychev|Preslav Nakov

Experimental IR Meets Multilinguality, Multimodality, and Interaction - 8th International Conference of the CLEF Association, CLEF 2017, Dublin, Ireland, September 11-14, 2017, Proceedings

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Cross-Language Question Re-Ranking.

Giovanni Da San Martino|Salvatore Romeo|Alberto Barrón-Cedeño|Shafiq R. Joty|Lluís Màrquez|Alessandro Moschitti|Preslav Nakov

Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

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Large-Scale Goodness Polarity Lexicons for Community Question Answering.

Todor Mihaylov|Daniel Balchev|Yasen Kiprov|Ivan Koychev|Preslav Nakov

Proceedings of the 40th International ACM SIGIR Conference on Research and Development in Information Retrieval, Shinjuku, Tokyo, Japan, August 7-11, 2017

2016

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PANcakes Team: A Composite System of Domain-Agnostic Features For Author Profiling.

Pepa Gencheva|Martin Boyanov|Elena Deneva|Preslav Nakov|Georgi Georgiev|Yasen Kiprov|Ivan Koychev

Working Notes of CLEF 2016 - Conference and Labs of the Evaluation forum, Évora, Portugal, 5-8 September, 2016.

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SU@PAN'2016: Author Obfuscation.

Tsvetomila Mihaylova|Georgi Karadjov|Yasen Kiprov|Georgi Georgiev|Ivan Koychev|Preslav Nakov

Working Notes of CLEF 2016 - Conference and Labs of the Evaluation forum, Évora, Portugal, 5-8 September, 2016.

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Experiments in Authorship-Link Ranking and Complete Author Clustering.

Valentin Zmiycharov|Dimitar Alexandrov|Hristo Georgiev|Yasen Kiprov|Georgi Georgiev|Ivan Koychev|Preslav Nakov

Working Notes of CLEF 2016 - Conference and Labs of the Evaluation forum, Évora, Portugal, 5-8 September, 2016.

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SIGIR 2016 Workshop WebQA II: Web Question Answering Beyond Factoids.

Alessandro Moschitti|Lluís Màrquez|Preslav Nakov|Eugene Agichtein|Charles L. A. Clarke|Idan Szpektor

Proceedings of the 39th International ACM SIGIR conference on Research and Development in Information Retrieval, SIGIR 2016, Pisa, Italy, July 17-21, 2016

2015

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SU@PAN'2015: Experiments in Author Profiling.

Yasen Kiprov|Momchil Hardalov|Preslav Nakov|Ivan Koychev

Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015.

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SU@PAN'2015: Experiments in Author Verification.

Stanimir Nikolov|Dobrinka Tabakova|Stefan Savov|Yasen Kiprov|Preslav Nakov

Working Notes of CLEF 2015 - Conference and Labs of the Evaluation forum, Toulouse, France, September 8-11, 2015.

2010

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Information Retrieval Technology - 6th Asia Information Retrieval Societies Conference, AIRS 2010, Taipei, Taiwan, December 1-3, 2010. Proceedings

Asia Information Retrieval Symposium (AIRS) 2010

2006

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BioText Team Report for the TREC 2006 Genomics Track.

Anna Divoli|Marti A. Hearst|Preslav Nakov|Ariel S. Schwartz

Proceedings of the Fifteenth Text REtrieval Conference, TREC 2006, Gaithersburg, Maryland, USA, November 14-17, 2006

2004

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BioText Team Experiments for the TREC 2004 Genomics Track.

Preslav Nakov|Ariel S. Schwartz|Emilia Stoica|Marti A. Hearst

Proceedings of the Thirteenth Text REtrieval Conference, TREC 2004, Gaithersburg, Maryland, USA, November 16-19, 2004

2003

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BioText Team Report for the TREC 2003 Genomics Track.

Gaurav Bhalotia|Preslav Nakov|Ariel S. Schwartz|Marti A. Hearst

Proceedings of The Twelfth Text REtrieval Conference, TREC 2003, Gaithersburg, Maryland, USA, November 18-21, 2003