[PlanetKR] CFP: NMR 2026 - 24th International Workshop on Nonmonotonic Reasoning

[Jacek Wegrzynowski]

[apologies for multiple postings]

NMR 2026 FIRST CALL FOR PAPERS

24th International Workshop on Nonmonotonic Reasoning, NMR 2026

    July 17–19, 2026, Lisbon, Portugal

Website: https://nmr.krportal.org/2026/
Contact: In case of questions, please email the NMR chairs Ana Ozaki (anaoz at uio.no) and Nico Potyka (potykan at cardiff.ac.uk).


IMPORTANT DATES

* April 3, 2026        Paper registration
* April 10, 2026       Paper submission
* May 18, 2026         Notification of acceptance
* June 17, 2026        Camera-ready version due
* July 17–19, 2026     Workshop


It is planned to hold NMR 2026 as an in-person event, that is, at least one author of every accepted paper has to physically attend the workshop.


GENERAL INFORMATION

NMR is the premier forum for results in the area of Nonmonotonic Reasoning. Its aim is to bring together active researchers in this broad field within knowledge representation and reasoning (KR), including belief revision, uncertain reasoning, reasoning about actions, planning, logic programming, preferences, argumentation, causality, and many other related topics including systems and applications. Visit also the general NMR webpage: https://nmr.krportal.org/.

NMR has a long history - it started in 1984 and, up until 2020, was held every two years. Recent previous NMR workshops were held in Melbourne (2025), Vietnam (2024), Greece (2023), Haifa (2022), Hanoi (virtually) (2021), Rhodes (virtually) (2020), Tempe (2018), Cape Town (2016), Vienna (2014), Rome (2012), Toronto (2010), and Sydney (2008).

NMR 2026 is co-located with the 23rd International Conference on Principles of Knowledge Representation and Reasoning (https://kr.org/KR2026/) at the Federated Logic Conference (https://www.floc26.org/).


AIMS AND SCOPE

NMR 2026 aims to foster connections between the different subareas of nonmonotonic reasoning and provide a forum for emerging topics. We especially invite papers on systems and applications, as well as position papers addressing benchmark issues. The workshop will be structured by topical sessions fitting to the scopes of accepted papers. Workshop activities will include invited talks and presentations of technical papers.


SUBMISSION DETAILS

We invite two types of submissions:

- Full papers. Full papers should be at most 14 pages including references, figures and appendices. Papers already published or accepted for publication at other conferences are also welcome, provided that the original publication is mentioned in a footnote on the first page and the submission at NMR falls within the authors' rights. In the same vein, papers under review for other conferences can be submitted with a similar indication on their front page.

- Extended Abstracts. Extended abstracts should be at most 3 pages (excluding references and acknowledgements). They should introduce work that has recently been published or is under review, or ongoing research at an advanced stage. We highly encourage to attach to the submission a preprint/postprint or a technical report. Such extra material will be read at the discretion of the reviewers. Submitting already published material may require a permission by the copyright holder.

All submissions should be formatted in CEUR style (1-column). Author kit: http://ceur-ws.org/Vol-XXX/CEURART.zip. Papers must be submitted in PDF only.

Please submit your contribution through the NMR 2026 Submission Portal: https://submissions.floc26.org/nmr/.


ORGANIZATION

General Co-Chairs:
Ana Ozaki · University of Oslo and University of Bergen, Norway
Nico Potyka · Cardiff University, UK

Publicity Chair:
Jacek Wegrzynowski · University of Oslo, Norway


WORKSHOP PROCEEDINGS

The accepted papers will be made available electronically in the CEUR Workshop Proceedings series as informal proceedings (http://ceur-ws.org/). The copyright of papers remain with the authors. Full papers will be indexed by dblp.org; but extended abstracts published on CEUR proceedings will not be indexed by dblp.org anymore.

Best regards,
Jacek Wegrzynowski
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