YinzOR 2026 Pittsburgh, USA
Hexaly is delighted to sponsor YinzOR 2026, hosted by the Carnegie Mellon University INFORMS Student Chapter. The conference will take place on August 21–22, 2026, at the Tepper School of Business, Carnegie Mellon University, in Pittsburgh, Pennsylvania.
YinzOR brings together early-career researchers, faculty, and industry leaders in operations research, management science, and industrial engineering. The two-day program features keynote talks, student flash talks, and interactive poster presentations. Hexaly is pleased to support this year’s edition and contribute to the technical program.
Hexaly talk at YinzOR 2026
As part of the technical program, Vianney Coppé, Ph.D., Optimization Scientist at Hexaly, will give a remote presentation. The details of Hexaly’s presentation at YinzOR 2026 are available below.
Column elimination for scheduling problems
Vianney Coppé, Ph.D., Optimization Scientist, Hexaly
Friday, August 21, 2026
Column elimination is a technique that has recently been introduced for solving optimization problems that aim to find an optimal set of sequences, such as vehicle routing problems. It relies on a compact representation of the problem in the form of a relaxed decision diagram, from which a relaxed solution can be obtained by solving a constrained network flow problem. As long as the solution contains sequences that are relaxed with respect to either the problem constraints or the cost function, the decision diagram is refined to eliminate the corresponding conflicts. In this talk, we describe the key ingredients required to apply column elimination to scheduling problems and present preliminary computational results.
In this talk, Vianney Coppé will describe the key algorithmic ingredients required to apply column elimination to scheduling problems and present preliminary computational results that illustrate the approach’s effectiveness.
The complete conference agenda and additional event information are available on the YinzOR 2026 website.
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