[agents] [CPAIOR 2025] — Call for Papers

[Jip Dekker]

The 22nd International Conference on the Integration of Constraint Programming, Artificial Intelligence, and Operations Research <https://sites.google.com/view/cpaior2025/home> will be held in Melbourne, Australia from November 10 to November 13, 2025. The conference will be co-located with ICAPS 2025 <https://icaps25.icaps-conference.org/home/>.

While the conference will take place later in the year than usual, papers are still due in December 2024, to not interfere with the usual sequence of conference deadlines.

The aim of the conference is to promote a space where researchers from Constraint Programming (CP), Artificial Intelligence (AI), and Operations Research (OR) present innovative techniques, new applications, and original cutting-edge ideas, thereby encouraging researchers from one area to learn from the others. Of particular interest to the conference are papers that integrate concepts and methodologies from these different fields, either proposing interesting new techniques for complex/practical problems or expanding our theoretical insights and cross-field understanding. However, high-quality original papers from a single area are welcome when also relevant to the other communities involved. The conference also strongly encourages regular papers or experience reports showcasing CP/AI/OR techniques on challenging real-world applications.
The program committee invites submissions that include, but are far from limited to, the following topics:
New methodologies in the interface between predictive and prescriptive pipelines, such as machine learning techniques applied to tackle optimization problems and, conversely, CP/OR techniques to address AI and machine learning tasks.
Novel relaxation and inference methods based on constraint propagation, polyhedral techniques/cutting planes, convex/second-order conic optimization, graph-based algorithms, dynamic programming, and decision diagrams for optimization.
New search perspectives involving enumeration/branch-and-bound strategies, innovative decomposition techniques (e.g., based on column generation/Benders), intelligent backtracking, incomplete search, and learning-based heuristics.
Advanced integrated methods that expose new model transformations, communication strategies across MIP/CP/SAT solvers, distributed solution techniques, and solver selection (e.g., portfolio approaches).
Innovative models and applications of CP/AI/OR techniques.
Implementation or evaluation of CP/AI/OR techniques and optimization systems.
Submissions are of two types: regular papers (submitted for publication and presentation) and extended abstracts (submitted for presentation only).
The conference will recognize a distinguished paper award and a student paper award.
Instructions for Regular Papers
Regular papers present original unpublished work and can be of two types:
long papers (at most 15 pages plus references)
short papers (at most 8 pages plus references)
Both long and short papers will undergo rigorous review and are subject to the same criteria of quality. Both types are also eligible for the distinguished paper or student paper award. Short papers are particularly encouraged for interesting and novel work in progress, for which the practical or theoretical relevance is not yet fully identified. 
The conference proceedings will be published in the Springer Lecture Notes in Computer Science series <http://www.springer.com/lncs>.  All regular papers should be prepared in the format used for that series (LNCS instructions <https://www.springer.com/gp/computer-science/lncs/conference-proceedings-guidelines?referer=www.springer.de&countryChanged=true>). 
Submission schedule for regular papers (both long and short):
Abstracts: December 8, 2024 (AoE: anywhere on Earth)
Full papers: December 15, 2024 (AoE, no extension possible)
Rebuttal Phase:  January 26-29, 2025 (AoE)
Notification: February 10, 2025
Camera ready: TBA

Papers submitted to CPAIOR must not be under review at a different venue at the same time during the reviewing period. Abstracts can be submitted if the paper is still under review elsewhere, but the paper will have to be withdrawn by the full paper submission deadline from CPAIOR or the other venue.
Instructions for Extended Abstracts
Extended abstracts should be one or two pages in length and may present preliminary work or work already published in other outlets. The extended abstracts are submitted for presentation only (if accepted), and will not be formally published in the LNCS conference volume. A collection of the accepted extended abstracts will be published on the conference website. A submission representing work submitted or published in another outlet should state that outlet. Extended abstracts will be reviewed to ensure appropriateness for the conference.
Submission schedule for extended abstracts:
Abstract: August 2025 (TBA)
Notification: September 2025 (TBA)
Submission Process
Submissions to CPAIOR are single blind. In a single blind review process, the author names are not hidden for the reviewers, but the reviewer names are hidden for the authors.

The submission link will be posted on the conference website in early October.

For any queries on the submission process, please contact the Program Chair Guido Tack at cpaior2025 at gmail.com.
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