Krakow, Poland, 22 - 24 June 2022

On schedule: Artificial Intelligence plans that meet expectations

DevNation Day
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Automate your business decisions in Java with Artificial Intelligence algorithms to improve your organization’s schedules, operations and processes. Optimize results. Find the best solution with hard and soft constraints.

Learn how to solve real business problems with OptaPlanner, the open source (Apache licensed) constraint solver in Java. Reuse sophisticated algorithms. Use it to write scalable, maintainable and reproducible code.

In this session, we will compare Brute Force, Greedy Heuristics and Metaheuristics. In our live coding session, we’re going to explore the impact of adding business constraints one by one on the resulting schedule.

Geoffrey De Smet

Red Hat

Geoffrey De Smet is the lead of OptaPlanner (, the open source AI constraint solver in Java that is used across the globe to automatically solve employee rostering, vehicle routing, task assignment, maintenance scheduling and other planning problems. He's an international speaker.

Anna Dupliak

Red Hat

I am Software Quality Engineer working at Red Hat. I enjoy working by specialisation I have graduated. Beside automation I create guides and tutorials.

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ICE Krakow, ul. Marii Konopnickiej 17


+48 691 793 877


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