CPAIOR 2025: Call for Papers

The 22nd International Conference on the Integration of Constraint Programming, Artificial Intelligence, and Operations Research (CPAIOR) will be held in Melbourne, Australia from November 10 to November 13, 2025. The conference will be co-located with ICAPS 2025.

Aim and Scope

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. Papers that integrate concepts and methodologies from these different fields are of particular interest, as are papers 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
• 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, 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
• Innovative models and applications of CP/AI/OR techniques.
• Implementation or evaluation of CP/AI/OR techniques and optimization systems.

Submission Types

Submissions are of two types:

• Regular papers: (submitted for publication and presentation)
• Extended abstracts: (submitted for presentation only)

The conference will recognize a distinguished paper award and a student paper award.

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Regular papers present original unpublished work and can be of two types: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.

Submissions to CPAIOR are single blind. The conference proceedings will be published in the Springer Lecture Notes in Computer Science series (LNCS instructions).

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.

Submission Process

We will use OpenReview.net to manage the reviewing process. Please use the following link to submit your papers: https://openreview.net/group?id=cpaior.org/CPAIOR/2025/Conference

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

Important Dates

All deadlines are the end of day AoE (anywhere on Earth).

Regular Papers

• Abstracts: December 8, 2024
• Full papers: December 15, 2024
• Rebuttal Phase: January 26-29, 2025
• Notification: February 10, 2025
• Camera ready: TBA

Extended Abstracts

• Abstract: August 24, 2025 (AoE)
• Notification: September 4, 2025

Conference Dates

• Master Class: Monday, November 10, 2025
• Conference: Tuesday, November 11–Thursday, November 13, 2025