Jan-Erik Hein

This project develops oracle-based primal heuristic strategies for mixed-integer nonlinear programming (MINLP). Rather than relying on expensive interior-point solves, the approach leverages fast first-order oracles—Frank-Wolfe, conditional gradient, and proximal methods—to generate high-quality primal solutions within an MINLP branch-and-cut framework, targeting problems where traditional nonlinear solvers become prohibitively expensive.