EUROYoung Workshop 2025 Naples

Events

Marion Technical Writer September 25, 2025

Hexaly is delighted to be the gold sponsor EUROYoung Workshop 2025 in Naples. The event will occur at the University of Naples on October 15–17, 2025. The EUROYoung Workshop 2025 program can be accessed here.

Come by the Hexaly booth at EUROYoung Workshop 2025 in Naples to meet  Julien Darlay, Co-Founder & Head of Science at Hexaly, and discover the new release Hexaly 14.0 and its dramatic performance improvements for solving Routing, Scheduling, Packing, and many other problems in Supply Chain and Workforce Optimization. This is also the opportunity to explore and discuss our many job offers. Below is the abstract of Julien’s talk at the 2025 EUROYoung Workshop in Naples:

Computing dual bounds of set-based models using column elimination in Hexaly
Julien Darlay, Co-Founder & Head of Science, Hexaly – Wednesday (17:30–18:30)

Hexaly is a model-and-run solver that combines heuristics with exact methods. In addition to supporting the classical MINLP formalism, it introduces a set-based modeling approach that simplifies the formulation of combinatorial problems, such as vehicle routing, production scheduling, and packing. For problems involving scalar operators only, Hexaly’s exact solver employs a nonlinear branch-and-bound algorithm. For set-based models, automatic reformulations are applied to derive either compact models that can be solved with standard branch & bound or extended formulations, which are then solved using branch price and cut or column elimination techniques. This talk will present the key techniques Hexaly uses to compute optimal solutions to nonlinear problems. 

We look forward to connecting with the operations research community.