SimpleText@CLEF-2025 Program

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• CLEF 2025 registration
• CLEF 2025 program
• CLEF 2025 LNCS Proceedings
• CLEF 2025 Working Notes (draft)

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SimpleText Track sessions take place in Room Ricardo Marin (Facultad de Educación), except for the plenary CLEF conference sessions in Salón de Actos (Facultad de Educación).

• Teams link for track sessions (Virtual Room Ricardo Marin): Teams Link Wed; Teams Link Thu

• If you registered for CLEF (online), the conference will provide the links for plenary sessions.

Tuesday 9th September

• No CLEF 2025 SimpleText Track sessions.

Wednesday 10th September

Main Conference Session 2 (Salón de Actos)

• 📶 10:00 – 10:20 N. Largey, R. Maarefdoust, S. Durgin, B. Mansouri, SimpleText Best of Labs in CLEF-2024: Application of Large Language Models for Scientific Text Simplification in: Proceedings of CLEF’25, LNCS, Springer, 2025 (Paper, Slides).

Main Conference Session 3 + Lab Overviews Session 2 (Salón de Actos)

• 12:30 – 12:50 L. Ermakova, H. Azarbonyad, J. Bakker, B. Vendeville, J. Kamps, Overview of the CLEF 2025 SimpleText Track: Simplify Scientific Texts (and Nothing More) in: Proceedings of CLEF’25, LNCS, Springer, 2025 (Paper, Slides).

SimpleText Session 1/3 (Room Ricardo Marin)

• 14:15 - 15:00 Invited talk by Horacio Saggion (Universitat Pompeu Fabra, Barcelona, Spain) “Text Simplification to Enable Democratic Participation in the iDEM project.” (Project, Slides):

Abstract: Several groups of people are excluded from democratic deliberation because the language used in this context may be too difficult for them to understand. Our iDEM project aims to reduce existing linguistic barriers in deliberative processes by developing technology to facilitate the translation of complicated text into Easy-to-Read formats that are more suitable for many people. In this talk, after a review of concepts and approaches to simplification, I will describe a lexical simplification system that can achieve state-of-the-art results with the use of a free and open-weight large language model for the Romance Languages in our project. Moreover, a sentence segmentation system will be introduced which segments long sentences based on available Easy to Read training data. Finally, I will describe the current status of our iDEM mobile app, which will make our technology available as a service.

Bio: Horacio Saggion has made pioneering contributions to automatic text simplification, a field in which he has combined deep research with socially impactful applications. He authored the seminal book Automatic Text Simplification (2017). He led the development of Simplext, the first large-scale Spanish simplification system, recognized for improving access to information for people with cognitive disabilities and language learners. His work extends beyond simplification to areas such as summarization, information extraction, and text mining. More generally, he made key contributions advancing accessible NLP technologies that make complex texts in domains like news, finance, and science easier to understand.

• 15:00 - 15:45 CLEF 2024 SimpleText Task Overviews:

• Jan Bakker, Benjamin Vendeville, Liana Ermakova, Jaap Kamps Overview of the CLEF 2025 SimpleText Task 1: Simplify Scientific Text, 4150-4167 (Paper, Slides).

• Benjamin Vendeville, Jan Bakker, Hosein Azarbonyad, Liana Ermakova, Jaap Kamps Overview of the CLEF 2025 SimpleText Task 2: Identify and Avoid Hallucination, 4168-4186 (Paper, Slides).

SimpleText Session 2/3 (Room Ricardo Marin)

• 16:30 - 18:00 CLEF 2024 Participant presentations (10+5 minutes).

• Jaime Collado-Montañez, Jenny Alexandra Ortiz-Zambrano, César Espin-Riofrio, Arturo Montejo-Ráez SINAI in SimpleText CLEF 2025: Simplifying Biomedical Scientific Texts and Identifying Hallucinations Using GPT-4.1 and Pattern Detection, 4207-4221 (Paper, Slides).

• Ygor Gallina, Tania Jiménez, Stéphane Huet University of Avignon at the CLEF 2025 SimpleText Track: Guided Medical Abstract Simplification, 4245-4257 (Paper, Slides).

• Nico Hofmann, Julian Dauenhauer, Nils Ole Dietzler, Idehen Daniel Idahor, Christin Katharina Kreutz THM@SimpleText 2025 - Task 1.1: Revisiting Text Simplification based on Complex Terms for Non-Experts, 4258-4267 (Paper, Slides).

• Primoz Kocbek, Gregor Stiglic UM_FHS at the CLEF 2025 SimpleText Track: Comparing No-Context and Fine-Tune Approaches for GPT-4.1 Models in Sentence and Document-Level Text Simplification, 4283-4292 (Paper, Slides).

• Anya Amel Nait Djoudi, Sarah Nouali, Mohsine Aabid, Ismail Badache, Adrian-Gabriel Chifu, Patrice Bellot LIS at SimpleText 2025: Enhancing Scientific Text Accessibility with LLMs and Retrieval-Augmented Generation, 4330-4337 (Paper, Slides).

• Taiki Papandreou, Jan Bakker, Jaap Kamps University of Amsterdam at the CLEF 2025 SimpleText Track, 4338-4344 (Paper, Slides).

• Marvin M. Agüero-Torales, Carlos Rodríguez Abellán, Carlos A. Castaño Moraga Sentence-level Scientific Text Simplification With Just a Pinch of Data, 4187-4192 (Paper, Slides).

Thursday 11th September

SimpleText Session 3/3 (Room Ricardo Marin)

• 14:15 - 15:30 CLEF 2024 Participant presentations (10+5 minutes).

• Benjamin Vendeville, Liana Ermakova, Pierre De Loor, Jaap Kamps UBOnlp Report at the SimpleText lab of CLEF 2025, 4345-4357 (Paper, Slides).

• 📶 Krishna Chaitanya Marturi, Heba H. Elwazzan DS@GT at CLEF 2025 SimpleText (one slot for both tasks):

  • Krishna Chaitanya Marturi, Heba H. Elwazzan Hallucination Detection and Mitigation in Scientific Text Simplification using Ensemble Approaches: DS@GT at CLEF 2025 SimpleText, 4306-4319 (Paper).

  • Krishna Chaitanya Marturi, Heba H. Elwazzan LLM-Guided Planning and Summary-Based Scientific Text Simplification: DS@GT at CLEF 2025 SimpleText, 4320-4329 (Paper).

• 📶 Nicholas Largey, Deiby Wu, Behrooz Mansouri AIIRLab Systems for CLEF 2025 SimpleText: Cross-Encoders to Avoid Spurious Generation, 4293-4305 (Paper).

• 📶 Ansh Vora, Tanish Chaudhari, Sanjeev Hotha, Sheetal Sonawane S-3 Pipeline for Biomedical Text Simplification, 4358-4369 (Paper, Slides).

• Stéphane Huet, Eric Sanjuan A Benchmark Collection for Assessing Scholarly Search by Non-Educated Users, 4268-4282 (Paper, Slides).

• (Time for additional talks, depending on demand, from the SimpleText track.)

• 15:30 - 15:45 SimpleText 2026 planning session:

  • We want to hear from you!
  • What was great about 2025, and what could we improve for you?
  • Any ideas or volunteers are welcome!
  • SimpleText roadmap (Slides):
    • New data/tasks/setup in 2026?
    • Corpus of document/paragraph/sentence aligned Cochrane abstracts and plain English summaries.
      • Also available in other languages
    • Spotting potential “hallucination” for generative output.
      • Automatic version of human evaluation/annotation?
      • Source attribution task?
    • Active interest in revisiting a particular 2024/2025 task?
      • Run additional task on related data?
      • proposal for task on identification of research areas from scientific text
      • proposal for task on contrastive institutional research summarization

Friday 12th September

Closing Ceremony and Introduction of CLEF 2026 (Salón de Actos)

• 13:00 - 14:00 Closing and plans for 2026 (including slides on the CLEF 2026 SimpleText track, Slides).

All CLEF 2025 SimpleText track papers

Including authors unable to present in-person or online:

Simplify Scientific Text (and Nothing More) (SimpleText)

• Jan Bakker, Benjamin Vendeville, Liana Ermakova, Jaap Kamps Overview of the CLEF 2025 SimpleText Task 1: Simplify Scientific Text, 4150-4167 (Paper).

• Benjamin Vendeville, Jan Bakker, Hosein Azarbonyad, Liana Ermakova, Jaap Kamps Overview of the CLEF 2025 SimpleText Task 2: Identify and Avoid Hallucination, 4168-4186 (Paper).

• Marvin M. Agüero-Torales, Carlos Rodríguez Abellán, Carlos A. Castaño Moraga Sentence-level Scientific Text Simplification With Just a Pinch of Data, 4187-4192 (Paper).

• Georgios Arampatzis, Avi Arampatzis DUTH at CLEF 2025 SimpleText Track: Tackling Scientific Text Simplification and Hallucination Detection, 4193-4206 (Paper).

• Jaime Collado-Montañez, Jenny Alexandra Ortiz-Zambrano, César Espin-Riofrio, Arturo Montejo-Ráez SINAI in SimpleText CLEF 2025: Simplifying Biomedical Scientific Texts and Identifying Hallucinations Using GPT-4.1 and Pattern Detection, 4207-4221 (Paper).

• Arya Adwait Dongre, Ankita Vaadiraaju, Anand Kumar Madasamy NITK SCaLAR Lab at the CLEF 2025 SimpleText Track: Transformer-Based Models for Biomedical Sentence Simplification (Task 1.1), 4222-4236 (Paper).

• Stergio Eugin, Beulah A, Sathvikha V, Sangamithra V RECAIDSTechTitans at CLEF 2025: Simplifying Scientific Text and Identifying Spurious Sentences using T5, 4237-4244 (Paper).

• Ygor Gallina, Tania Jiménez, Stéphane Huet University of Avignon at the CLEF 2025 SimpleText Track: Guided Medical Abstract Simplification, 4245-4257 (Paper).

• Nico Hofmann, Julian Dauenhauer, Nils Ole Dietzler, Idehen Daniel Idahor, Christin Katharina Kreutz THM@SimpleText 2025 - Task 1.1: Revisiting Text Simplification based on Complex Terms for Non-Experts, 4258-4267 (Paper).

• Stéphane Huet, Eric Sanjuan A Benchmark Collection for Assessing Scholarly Search by Non-Educated Users, 4268-4282 (Paper).

• Primoz Kocbek, Gregor Stiglic UM_FHS at the CLEF 2025 SimpleText Track: Comparing No-Context and Fine-Tune Approaches for GPT-4.1 Models in Sentence and Document-Level Text Simplification, 4283-4292 (Paper).

• Nicholas Largey, Deiby Wu, Behrooz Mansouri AIIRLab Systems for CLEF 2025 SimpleText: Cross-Encoders to Avoid Spurious Generation, 4293-4305 (Paper).

• Krishna Chaitanya Marturi, Heba H. Elwazzan Hallucination Detection and Mitigation in Scientific Text Simplification using Ensemble Approaches: DS@GT at CLEF 2025 SimpleText, 4306-4319 (Paper).

• Krishna Chaitanya Marturi, Heba H. Elwazzan LLM-Guided Planning and Summary-Based Scientific Text Simplification: DS@GT at CLEF 2025 SimpleText, 4320-4329 (Paper).

• Anya Amel Nait Djoudi, Sarah Nouali, Mohsine Aabid, Ismail Badache, Adrian-Gabriel Chifu, Patrice Bellot LIS at SimpleText 2025: Enhancing Scientific Text Accessibility with LLMs and Retrieval-Augmented Generation, 4330-4337 (Paper).

• Taiki Papandreou, Jan Bakker, Jaap Kamps University of Amsterdam at the CLEF 2025 SimpleText Track, 4338-4344 (Paper).

• Benjamin Vendeville, Liana Ermakova, Pierre De Loor, Jaap Kamps UBOnlp Report at the SimpleText lab of CLEF 2025, 4345-4357 (Paper).

• Ansh Vora, Tanish Chaudhari, Sanjeev Hotha, Sheetal Sonawane S-3 Pipeline for Biomedical Text Simplification, 4358-4369 (Paper).