The 23rd International Conference on the Integration of Constraint Programming, Artificial Intelligence, and Operations Research

The 23rd International Conference on the Integration of Constraint Programming, Artificial Intelligence, and Operations Research (CPAIOR 2026) addresses the productive convergence of three powerful paradigms for solving hard combinatorial and optimization problems. Constraint programming, AI planning and search, and operations research each bring distinct strengths, and CPAIOR is the primary venue exploring their principled combination.

Researchers in constraint programming, mixed-integer programming, satisfiability, heuristic search, and scheduling attend alongside practitioners applying hybrid methods to logistics, manufacturing, healthcare planning, and network design. CPAIOR 2026 is particularly relevant as machine learning is increasingly integrated into solver pipelines—for branching heuristics, variable ordering, and problem decomposition. The conference is essential for optimization researchers who want to work across paradigm boundaries rather than remain within a single methodological tradition.