CHOMPS 2025

The 1st workshop on Confabulation, Hallucinations & Overgeneration in Multilingual and Practical Settings

Advances in hallucination mitigation in practical situations:
multilingual and precision-critical domains

In conjunction with AACL-IJCNLP 2025
23-24 December, 2025, Mumbai, India (On-Site)



News and Updates


Overview

The aim of the CHOMPS workshop is to find ways to mitigate one of major the hurdles that currently prevent the adoption of Large Language Models in real-world scenarios: namely, their tendency to hallucinate, i.e., produce unsupported and unverifiable text that sounds deceptively plausible.


Call for Papers

The workshop will explore hallucination mitigation in practical situations, where this mitigation is crucial: in particular, precision-critical applications (such as those in the medical, legal and biotech domains), as well as multilingual settings (given the lack of resources available to reproduce what can be done for English in other linguistic contexts). In practice, we intend to invite works of the following (not exclusive) list of topics:

  • Metrics, benchmarks and tools for hallucination detection
  • Factuality challenges in mission critical & domain-specific (e.g., medical, legal, biotech) and their consequences on societal, engineering and practical levels
  • Mitigation strategies during inference or model training
  • Studies of hallucinatory and confabulatory behaviors of LLMS in cross-lingual and multilingual scenarios
  • Confabulations in language & multimodal (vision, text, speech) models
  • Perspectives and case studies from other disciplines


Important dates

  • Paper submission: September 29, 2025 UTC/GMT-11
  • ARR commitment: October 27, 2025
  • Author notification: November 3, 2025
  • Camera-Ready: November 11, 2025
  • Workshop date: December 23-24, 2025 (TBA)


Submission guidelines

The workshop is designed with a widely inclusive submission policy so as to foster as vibrant a discussion as possible. In particular, we will accept:

  • Archival submissions, corresponding to novel and unpublished research, to be included in the workshop proceedings,
  • Non-archival submissions, corresponding to work in progress and early results,
  • Dissemination submissions, articles presented in other venues that engage with the topics of the workshop.
Archival or non-archival submissions may consist of up to 8 pages (long) or 4 pages (short) of content. Dissemination submissions may consist of up to 1 pages of content. On acceptance, authors may add one additional page to accomodate changes suggested by the reviewers.

Submissions' Site: (a) via Direct submission (b) via ARR commitement


Keynote Speakers

Anna Rogers
Dr.
Anna Rogers
IT University of Copenhagen, Denmark
Website

Anna Rogers is a tenured Associate Professor in the Data Science Section at the IT University of Copenhagen, affiliated with the NLPNorth research group. Her research focuses on model analysis and evaluation of natural language understanding systems, with a keen interest in interpretability and robustness of NLP systems based on Large Language Models.

Danish Pruthi
Dr.
Danish Pruthi
IISc Bangalore, India
Website

Danish Pruthi is an Assistant Professor at the Indian Institute of Science (IISc), Bangalore. He received his Ph.D. from the School of Computer Science at Carnegie Mellon University. His research focuses on addressing issues concerning the interpretability of deep learning models, and more recently, in geo-cultural representation in AI and understanding the behavior of Large Language ModelS.



Program Committee

  • Priyanka Agarwal (Google Deepmind)
  • Joseph Attieh (University of Helsinki)
  • Simone Balloccu (TU Darmstadt)
  • Yawri Carr (TU Munich)
  • Mathieu Constant (ATILF, University of Lorraine)
  • George Drayson (UCL AI Centre)
  • Fanny Ducel (Université Paris-Saclay)
  • Ondřej Dušek (Charles University)
  • Bryan Eikema (University of Amsterdam)
  • Jindřich Helcl (Charles University)
  • Aditya Joshi (UNSW)
  • Priyanshu Kumar (Apple)
  • Mateusz Lango (Charles University)
  • Jindřich Libovický (Charles University)
  • Kristýna Onderková (Charles University)
  • Shantipriya Parida (SiLO AI)
  • Alessandro Raganato (University Milano-Bicocca)
  • Rohit Saxena (University of Edinburgh)
  • Patricia Schmidtova (Charles University)
  • Vincent Segonne (Université Bretagne Sud)
  • Michal Štefánik (University of Helsinki)
  • Ondřej Stolář (Masaryk University)
  • Tarun Tater (University of Stuttgart)
  • Marco Viviani (University Milano-Bicocca)
  • Amelie Wuhrl (University of Copenhagen)
  • Zhuohan Xie (MBZUAI)
  • Laura Zanella (POSOS)


Organizers

Aman Sinha
Aman Sinha
University of Lorraine, France
Website
Timothee Mickus
Timothee Mickus
University of Helsinki, Finland
Website
Raul Vazquez
Raul Vazquez
University of Helsinki, Finland
Website
Ioana Buhnila
Ioana Buhnila
University of Lorraine, France
Website
Rohit Agarwal
Rohit Agarwal
UiT Tromsø, Norway
Website
Patricia Schmidtova
Patricia Schmidtova
Charles University, Prague
Website
Jörg Tiedmann
Jörg Tiedmann
University of Helsinki, Finland
Website
Dilip K. Prasad
Dilip K. Prasad
UiT Tromsø, Norway
Website


Sponsors

If interested, please reach out to us at chomps-aacl2025@googlegroups.com