Meet Hexaly at INFORMS Optimization Society Conference

Hexaly is delighted to sponsor the 2024 INFORMS Optimization Society Conference, IOS 2024, scheduled from March 22 to 24, 2024, at the JW Marriott Houston by The Galleria. You can access the conference program here.

Visit our booth to discover the latest features and applications of Hexaly 12.5, meet our team of optimization scientists, and explore our job opportunities. To learn more about Hexaly, attend the presentation by Frédéric Gardi, co-founder of Hexaly, on March 23. Below is a summary of his presentation.

Hexaly, a new kind of global optimization solver

Hexaly Optimizer is a new kind of global optimization solver. Its modeling interface is nonlinear and set-oriented. It also supports user-coded functions, thus enabling black-box optimization and, more particularly, simulation optimization. In a sense, Hexaly APIs unify modeling concepts from mixed-linear programming, nonlinear programming, and constraint programming. Under the hood, Hexaly combines various exact and heuristic optimization methods: spatial branch-and-bound, simplex methods, interior-point methods, augmented Lagrangian methods, automatic Dantzig-Wolfe reformulation, column and row generation, propagation methods, local search, direct search, population-based methods, and surrogate modeling techniques for black-box optimization. 

Regarding performance benchmarks, Hexaly distinguishes itself against the leading solvers in the market, like Gurobi, IBM Cplex, and Google OR Tools, by delivering fast and scalable solutions to problems in the spaces of Supply Chain and Workforce Management like Routing, Scheduling, Packing, Clustering, and Location. For example, on notoriously hard problems like the Pickup and Delivery Problem with Time Windows or Flexible Job Shop Scheduling with Setup Times, Hexaly delivers solutions with a gap to the best solutions known in the literature smaller than 1% in a few minutes of running times on a basic computer.    

In addition to the Optimizer, we provide an innovative development platform called Hexaly Studio to model and solve rich Vehicle Routing and Job Shop Scheduling problems in a no-code fashion. The user can define its problem and data, run the Optimizer, visualize the solutions and key metrics through dashboards, and deploy the resulting app in the cloud – without coding. This web-based platform is particularly interesting for educational purposes; it is free for faculty and students. 

Are you interested in trying Hexaly? Get free trial licenses here. In the meantime, feel free to contact us; we will be glad to exchange your optimization problems.