4 papers · 1 filter
Boscia.jl: A review and tutorial
Wenjie Xiao, Deborah Hendrych, Mathieu Besançon +2
Mixed-integer nonlinear optimization (MINLP) comprises a large class of problems that are challenging to solve and exhibit a wide range of structures. The Boscia framework (Hendryc…
The Pivoting Framework: Frank-Wolfe Algorithms with Active Set Size Control
Elias Wirth, Mathieu Besançon, Sebastian Pokutta
We propose the pivoting meta algorithm (PM) to enhance optimization algorithms that generate iterates as convex combinations of vertices of a feasible region $C\subseteq \mathbb{R}…
Secant Line Search for Frank-Wolfe Algorithms
Deborah Hendrych, Mathieu Besançon, David MartÃnez-Rubio +1
We present a new step-size strategy based on the secant method for Frank-Wolfe algorithms. This strategy, which requires mild assumptions about the function under consideration, ca…
Mixed-Integer Optimization for Loopless Flux Distributions in Metabolic Networks
Hannah Troppens, Mathieu Besançon, St. Elmo Wilken +1
Constraint-based metabolic models can be used to investigate the intracellular physiology of microorganisms. These models couple genes to reactions, and typically seek to predict m…