TY - CHAP A1 - Struß, Julia Maria A1 - Lewandowski, Dirk T1 - Methoden in der Informationswissenschaft T2 - Grundlagen der Informationswissenschaft KW - Informations- und Dokumentationswissenschaft KW - Methode KW - Wissenschaftliches Arbeiten Y1 - 2023 SN - 978-3-11-076904-3 U6 - https://doi.org/10.1515/9783110769043-004 SP - 57 EP - 69 PB - DeGruyter CY - Berlin ER - TY - CHAP A1 - Barrón-Cedeño, Alberto A1 - Alam, Firoj A1 - Struß, Julia Maria A1 - Nakov, Preslav A1 - Chakraborty, Tanmoy A1 - Elsayed, Tamer A1 - Przybyła, Piotr A1 - Caselli, Tommaso A1 - Da San Martino, Giovanni A1 - Haouari, Fatima A1 - Hasanain, Maram A1 - Li, Chengkai A1 - Piskorski, Jakub A1 - Ruggeri, Federico A1 - Song, Xingyi A1 - Suwaileh, Reem ED - Goeuriot, Lorraine ED - Mulhem, Philippe ED - Quénot, Georges ED - Schwab, Didier ED - Di Nunzio, Giorgio Maria ED - Soulier, Laure ED - Galušcáková, Petra ED - Seco de Herrera, Alba García ED - Faggioli, Guglielmo ED - Ferro, Nicola T1 - Overview of the CLEF-2024 CheckThat! Lab : Check-Worthiness, Subjectivity, Persuasion, Roles, Authorities, and Adversarial Robustness T2 - 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 N2 - We describe the seventh edition of the CheckThat! lab, part of the 2024 Conference and Labs of the Evaluation Forum (CLEF). Previous editions of CheckThat! focused on the main tasks of the information verification pipeline: check-worthiness, identifying previously fact-checked claims, supporting evidence retrieval, and claim verification. In this edition, we introduced some new challenges, offering six tasks in fifteen languages (Arabic, Bulgarian, English, Dutch, French, Georgian, German, Greek, Italian, Polish, Portuguese, Russian, Slovene, Spanish, and code-mixed Hindi-English): Task 1 on estimation of check-worthiness (the only task that has been present in all CheckThat! editions), Task 2 on identification of subjectivity (a follow up of the CheckThat! 2023 edition), Task 3 on identification of the use of persuasion techniques (a follow up of SemEval 2023), Task 4 on detection of hero, villain, and victim from memes (a follow up of CONSTRAINT 2022), Task 5 on rumor verification using evidence from authorities (new task), and Task 6 on robustness of credibility assessment with adversarial examples (new task). These are challenging classification and retrieval problems at the document and at the span level, including multilingual and multimodal settings. This year, CheckThat! was one of the most popular labs at CLEF-2024 in terms of team registrations: 130 teams. More than one-third of them (a total of 46) actually participated. KW - Desinformation KW - Fehlinformation Y1 - 2024 SN - 978-3-031-71907-3 U6 - https://doi.org/10.1007/978-3-031-71908-0 SP - 28 EP - 52 PB - Springer Nature CY - Berlin ER - TY - CHAP A1 - Mandl, Thomas A1 - Struß, Julia Maria ED - Heisig, Peter T1 - Information retrieval BT - Core techniques, issues, current and future developments T2 - Handbook on Information Sciences KW - Indexierung KW - Information Retrieval KW - Natürliche Sprache KW - Suchmaschine Y1 - 2024 SN - 978-1-0353-4369-0 U6 - https://doi.org/10.4337/9781035343706.00016 SP - 137 EP - 151 PB - Edward Elgar Publishing CY - Cheltenham ER - TY - CHAP A1 - Barrón-Cedeño, Alberto A1 - Alam, Firoj A1 - Galassi, Andrea A1 - Da San Martino, Giovanni A1 - Nakov, Preslav A1 - Elsayed, Tamer A1 - Azizov, Dilshod A1 - Caselli, Tommaso A1 - Cheema, Gullal S. A1 - Haouari, Fatima A1 - Hasanain, Maram A1 - Kutlu, Mucahid A1 - Li, Chengkai A1 - Ruggeri, Federico A1 - Struß, Julia Maria A1 - Zaghouani, Wajdi ED - Arampatzis, Avi ED - Kanoulas, Evangelos ED - Tsikrika, Theodora ED - Vrochidis, Stefanos ED - Giachanou, Anastasia ED - Li, Dan ED - Aliannejadi, Mohammad ED - Vlachos, Michalis ED - Faggioli, Guglielmo ED - Ferro, Nicola T1 - Overview of the CLEF–2023 CheckThat! Lab on Checkworthiness, Subjectivity, Political Bias, Factuality, and Authority of News Articles and Their Source T2 - Experimental IR Meets Multilinguality, Multimodality, and Interaction N2 - We describe the sixth edition of the CheckThat! lab, part of the 2023 Conference and Labs of the Evaluation Forum (CLEF). The five previous editions of CheckThat! focused on the main tasks of the information verification pipeline: check-worthiness, verifying whether a claim was fact-checked before, supporting evidence retrieval, and claim verification. In this sixth edition, we zoom into some new problems and for the first time we offer five tasks in seven languages: Arabic, Dutch, English, German, Italian, Spanish, and Turkish. Task 1 asks to determine whether an item - text or text plus image- is check-worthy. Task 2 aims to predict whether a sentence from a news article is subjective or not. Task 3 asks to assess the political bias of the news at the article and at the media outlet level. Task 4 focuses on the factuality of reporting of news media. Finally, Task 5 looks at identifying authorities in Twitter that could help verify a given target claim. For a second year, CheckThat! was the most popular lab at CLEF-2023 in terms of team registrations: 127 teams. About one-third of them (a total of 37) actually participated. KW - Desinformation KW - Fehlinformation KW - COVID-19 Y1 - 2023 SN - 978-3-031-42448-9 U6 - https://doi.org/10.1007/978-3-031-42448-9_20 SN - 1611-3349 SP - 251 EP - 275 PB - Springer International Publishing CY - Cham ER - TY - CHAP A1 - Galassi, Andrea A1 - Ruggeri, Federico A1 - Barrón-Cedeño, Alberto A1 - Alam, Firoj A1 - Caselli, Tommaso A1 - Kutlu, Mucahid A1 - Struß, Julia Maria A1 - Antici, Francesco A1 - Hasanain, Maram A1 - Köhler, Juliane A1 - Korre, Katerina A1 - Leistra, Folkert A1 - Muti, Arianna A1 - Siegel, Melanie A1 - Türkmen, Mehmet Deniz A1 - Wiegand, Michael A1 - Zaghouani, Wajdi ED - Aliannejadi, Mohammad ED - Faggiolo, Guglielmo ED - Ferro, Nicola ED - Vlachos, Michalis T1 - Overview of the CLEF-2023 CheckThat! Lab: Task 2 on Subjectivity in News Articles BT - Notebook for the CheckThat! Lab at CLEF 2023 T2 - CLEF 2023 Working Notes N2 - We describe the outcome of the 2023 edition of the CheckThat!Lab at CLEF. We focus on subjectivity (Task 2), which has been proposed for the first time. It aims at fostering the technology for the identification of subjective text fragments in news articles. For that, we produced corpora consisting of 9,530 manually-annotated sentences, covering six languages - Arabic, Dutch, English, German, Italian, and Turkish. Task 2 attracted 12 teams, which submitted a total of 40 final runs covering all languages. The most successful approaches addressed the task using state-of-the-art multilingual transformer models, which were fine-tuned on language-specific data. Teams also experimented with a rich set of other neural architectures, including foundation models, zero-shot classifiers, and standard transformers, mainly coupled with data augmentation and multilingual training strategies to address class imbalance. We publicly release all the datasets and evaluation scripts, with the purpose of promoting further research on this topic. KW - Desinformation KW - Fehlinformation KW - COVID-19 Y1 - 2023 UR - https://ceur-ws.org/Vol-3497/paper-020.pdf SP - 236 EP - 249 CY - Thessaloniki ER - TY - CHAP A1 - Higi, Leonard A1 - Neuroth, Heike A1 - Struß, Julia Maria ED - Semar, Wolfgang T1 - From Data Life Cycle to Urban Data Practice BT - Data-based Application Development for Municipal Stakeholders in Rural Areas Organized along the Data Life Cycle T2 - Nachhaltige Information – Information für Nachhaltigkeit N2 - This paper presents a project that aims at supporting municipal stakeholders in rural areas by developing data-based applications in a collaborative process of stakeholders and a transfer team. In order to foster knowledge transfer in the domains of data literacy and data management on multiple levels a new approach is proposed that organizes the team competencies along the data life cycle. KW - Forschungsdaten KW - Datenkompetenz KW - Gemeindeverwaltung KW - Öffentlicher Dienst KW - Stadtforschung Y1 - 2023 SN - 978-3-86488-200-5 U6 - https://doi.org/10.5281/zenodo.10009338 SN - 0938-8710 SP - 393 EP - 400 PB - Verlag Werner Hülsbusch CY - Glückstadt ER - TY - CHAP A1 - Nakov, Preslav A1 - Barrón-Cedeño, Alberto A1 - Da San Martino, Giovanni A1 - Alam, Firoj A1 - Struß, Julia Maria A1 - Mandl, Thomas A1 - Míguez, Rubén A1 - Caselli, Tommaso A1 - Kutlu, Mucahid A1 - Zaghouani, Wajdi A1 - Li, Chengkai A1 - Shaar, Shaden A1 - Shahi, Gautam Kishore A1 - Mubarak, Hamdy A1 - Nikolov, Alex A1 - Babulkov, Nikolay A1 - Kartal, Yavuz Selim A1 - Wiegand, Michael A1 - Siegel, Melanie A1 - Köhler, Juliane T1 - Overview of the CLEF-2022 CheckThat! Lab on Fighting the COVID-19 Infodemic and Fake News Detection T2 - Experimental IR Meets Multilinguality, Multimodality, and Interaction. CLEF 2022. N2 - We describe the fifth edition of the CheckThat! lab, part of the 2022 Conference and Labs of the Evaluation Forum (CLEF). The lab evaluates technology supporting tasks related to factuality in multiple languages: Arabic, Bulgarian, Dutch, English, German, Spanish, and Turkish. Task 1 asks to identify relevant claims in tweets in terms of check-worthiness, verifiability, harmfullness, and attention-worthiness. Task 2 asks to detect previously fact-checked claims that could be relevant to fact-check a new claim. It targets both tweets and political debates/speeches. Task 3 asks to predict the veracity of the main claim in a news article. CheckThat! was the most popular lab at CLEF-2022 in terms of team registrations: 137 teams. More than one-third (37%) of them actually participated: 18, 7, and 26 teams submitted 210, 37, and 126 official runs for tasks 1, 2, and 3, respectively. KW - Check-worthiness estimation KW - Fact-checking KW - Desinformation KW - Fehlinformation KW - COVID-19 Y1 - 2022 SN - 978-3-031-13643-6 U6 - https://doi.org/10.1007/978-3-031-13643-6_29 SN - 0302-9743 SP - 495 EP - 520 PB - Springer CY - Cham ER - TY - CHAP A1 - Nakov, Preslav A1 - Barrón-Cedeño, Alberto A1 - Da San Martino, Giovanni A1 - Alam, Firoj A1 - Struß, Julia Maria A1 - Mandl, Thomas A1 - Míguez, Rubén A1 - Caselli, Tommaso A1 - Kutlu, Mucahid A1 - Zaghouani, Wajdi A1 - Li, Chengkai A1 - Shaar, Shaden A1 - Shahi, Gautam Kishore A1 - Mubarak, Hamdy A1 - Nikolov, Alex A1 - Babulkov, Nikolay A1 - Kartal, Yavuz Selim A1 - Beltrán, Javier T1 - The CLEF-2022 CheckThat! Lab on Fighting the COVID-19 Infodemic and Fake News Detection T2 - Advances in Information Retrieval. ECIR 2022 N2 - The fifth edition of the CheckThat! Lab is held as part of the 2022 Conference and Labs of the Evaluation Forum (CLEF). The lab evaluates technology supporting various factuality tasks in seven languages: Arabic, Bulgarian, Dutch, English, German, Spanish, and Turkish. Task 1 focuses on disinformation related to the ongoing COVID-19 infodemic and politics, and asks to predict whether a tweet is worth fact-checking, contains a verifiable factual claim, is harmful to the society, or is of interest to policy makers and why. Task 2 asks to retrieve claims that have been previously fact-checked and that could be useful to verify the claim in a tweet. Task 3 is to predict the veracity of a news article. Tasks 1 and 3 are classification problems, while Task 2 is a ranking one. KW - Desinformation KW - Fehlinformation KW - COVID-19 KW - Fact-checking KW - Check-worthiness estimation Y1 - 2022 SN - 978-3-030-99739-7 U6 - https://doi.org/10.1007/978-3-030-99739-7_52 SN - 0302-9743 SP - 416 EP - 428 PB - Springer CY - Cham ER - TY - CHAP A1 - Alam, Firoj A1 - Struß, Julia Maria A1 - Chakraborty, Tanmoy A1 - Dietze, Stefan A1 - Hafid, Salim A1 - Korre, Katerina A1 - Muti, Arianna A1 - Nakov, Preslav A1 - Ruggeri, Federico A1 - Schellhammer, Sebastian A1 - Setty, Vinay A1 - Sundriyal, Megha A1 - Todorov, Konstantin A1 - Venktesh, V. ED - Hauff, Claudia ED - Macdonald, Craig ED - Jannach, Dietmar ED - Nardini, Franco Maria ED - Pinelli, Fabio ED - Silvestri, Fabrizio ED - Tonellotto, Nicola T1 - The CLEF-2025 CheckThat! Lab BT - Subjectivity, Fact-Checking, Claim Normalization, and Retrieval T2 - Advances in Information Retrieval : 47th European Conference on Information Retrieval, ECIR 2025, Lucca, Italy, April 6–10, 2025, Proceedings, Part V N2 - The CheckThat! lab aims to advance the development of innovative technologies designed to identify and to counteract online disinformation and manipulation efforts across various languages and platforms. The first five editions of the CheckThat! lab focused on the main tasks of the information verification pipeline: check-worthiness, evidence retrieval and pairing, and verification. Since the 2023 edition, the lab has broadened the focus and addressed new problems on auxiliary tasks supporting research and decision-making during the verification process. In the 2025 edition of the lab, we consider tasks at the core of the verification pipeline again as well as auxiliary tasks: Task 1 is on identification of subjectivity (a follow up of the CheckThat! 2024 edition), Task 2 is on claim normalization, Task 3 addresses fact-checking numerical claims, and Task 4 focuses on scientific web discourse processing. These tasks represent challenging classification and retrieval problems at the document and at the span level, including multilingual settings. KW - Desinformation KW - Fehlinformation KW - Information Retrieval Y1 - 2025 SN - 978-3-031-88720-8 U6 - https://doi.org//10.1007/978-3-031-88720-8_68 SN - 0302-9743 SP - 467 EP - 478 PB - Springer International Publishing CY - Cham ER -