And with Guido’s goodbye, we conclude another amazing CPAIOR. Thank you to all the speakers and attendees! For people who couldn’t attend, we’re hoping to publish talks of the presentations where speakers allow.

Our final session at CPAIOR contains a varied number of topics: learning, algorithm configuration and MDPs. As a suprise speaker, Bistra Dilkina is presenting the work "Accelerated Discovery of Set Cover Solutions via Graph Neural Networks" as the authors were unavailable. doi.org/10.1007/978-...

The second application session is all about Transport and Power Systems. We start with a presentation by Thomas Jacquet who guides us through his column generation heuristic for multi-depot electric bus scheduling. doi.org/10.1007/978-...

We continue with Emma Legrand, who won student best paper award. She presents their work on dynamic programming for the job sequencing and tool switching problem. Congratulations Emma and her co-authors Vianney Copp, Daniele Catanzaro, and Pierre Schaus! doi.org/10.1007/978-...

Our first application session of the day is on the subject of Manufacturing and Laboratory Scheduling. Philipp Danzinger gets us started with a presentation about how they were able to model and solve test laboratory scheduling problems in a generalized way. doi.org/10.1007/978-...

Our final day starts with an exciting invited talk joined with ICAPS by Bistra Dilkina how in her research machine learning meets combinatorial optimization. With her research well known in both our communities, everyone is excited to hear what she will tell us.

The second talk in the session titled "Multi-task Representation Learning for Mixed Integer Linear Programming" won the best paper award. Congratulations to Junyang Cai, Taoan Huang, and Bistra Dilkina! doi.org/10.1007/978-...

In our final session for the day, we're focused on a hot topic: machine learning and mixed integer programming. Connor Lawless will start the session and tells us how to use LLMs for cold-start cutting plane separator configuration. doi.org/10.1007/978-...

Continuing after lunch, CPAIOR dives into solving technologies. The first talk by Hendrik Bierlee on how many different pseudo-Boolean encodings for Satisfiability solving boil down to the same abstraction. doi.org/10.1007/978-...

Next year, CPAIOR will take place in Morocco. The website for the conference is already online: sites.google.com/view/cpaior2... It includes the call for paper, and the deadline is less than a month away!

Our next application session dives into Satellites and UAVs. Henoïk Willot kicks off the session with a presentation on satellite communication resources management in an earth observation federation of constellations. doi.org/10.1007/978-...

We start the second day of CPAIOR 2025 with an invited talk shared with ICAPS. Hanna Kurniawati talks about how the uncertainty of the real-world makes decision-making for robots challenging, and what strategies can be used to tackle it.

Our last session of the day is themed "Reinforcement Learning and Learning Heuristics". Ryo Kuroiwa is starting us off and shows how reinforcement learning-based can be used as a heuristic to guide Domain-Independent Dynamic Programming doi.org/10.1007/978-...

In session 3 of the day, we're talking about applications of scheduling and resource allocation in industry, healthcare, sustainability. Our first speaker is George Assaf, who optimized scheduling of medical appointment sequences using constraint programming. doi.org/10.1007/978-...

In our first invited talk of CPAIOR, Louis-Martin Rousseau talks about the road towards neuro-symbolic CP. How can the prominent strengths of machine learning be integrated with the sophisticated reasoning of the constraint programming solvers?

Our first session today is on "Symmetry Breaking and Constraint Acquisition". First up is Mun See Chang who elaborates on their work on automatic symmetry breaking of indistinguishable object in Essence. doi.org/10.1007/978-...

This morning Guido Tack, our Program and Conference Chair, kicks off the conference. With a program packed with great talks, we're in for a great three days!

In our final session today, Edward Lam helps us dive into how Column Generation is used to solve multi-agent path finding problems. He shows how CP/AI/OR methods are crucial to solve this well-known planning problem.

After lunch, Scott Sanner is transitioning us from Classical Planning into Markov Decision Processes. It is very probable that we'll learn something new!

Continuing where Melte left off, in the second session of the day Florian Pommerening will talk about Operator Counting and Potential Heuristics.

In the first session of the Master Class, Malte Helmert teaches us about Classical planning, and how CP, AI, and OR techniques fit into the state-of-the-art techniques that are used. He details how "Cost Partitioning" works and how it improves the planners.

Today we're kicking CPAIOR off with the master class on "CP, AI and OR for Classical Planning", and who better to get us started than Buser Say, the mastermind behind today

Today is the last day of early registration. If you haven’t yet, then register yourself now! sites.google.com/view/cpaior2...

Registrations for CPAIOR 2025 are now open. Please visit the conference website at sites.google.com/view/cpaior2... for the registration link as well as more information on the conference venue, travel, visas, and accommodation. Early registration will close on 3 September 2025.

The rebuttal period for #CPAIOR papers has begun. Time to make reviewer 2 see it your way!

There are seven hours left to submit the final version of your paper. One last sprint to make it to the finish line, and then you can take your well-deserved rest!

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Tomorrow (anywhere on earth) will be the last day to submit the abstract of your CPAIOR papers. Not sure whether the paper will be ready in time? Better to submit the abstract, and see what you can still do in the coming week!

There are still 7 days left for the abstract deadline, and 14 days until the full paper deadline! Just enough time to submit your brilliant idea and come present it in Melbourne! The OpenReview page is ready for you: openreview.net/group?id=cpa... #cp #ai #orms

CPAIOR 2025 Conference

Welcome to the OpenReview homepage for CPAIOR 2025 Conference

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We'll be updating you on the 22nd iteration of #CPAIOR here on BlueSky! Have a look at our call for papers: sites.google.com/view/cpaior2..., and submit your #CP, #AI, and #ORMS research! #conference #academia