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OptiSkill: A Hierarchical and Evolving SkillBank for LLM-Based Optimization Modeling

arXiv · AI, language, vision and robotics · article · Sep 19, 2026 · UTC

Automated operations research (OR) modeling requires LLMs to translate natural-language decision problems into correct mathematical programs. Existing methods can improve individual formulations, but they often solve problems in isolation, retaining little reusable experience and repeating similar formulation errors. Prior memory-based approaches store examples, thoughts, or insights as references, while OR modeling requires reusable formulation skills that transfer across problem narratives and guide concrete modeling decisions. We propose OptiSkill, a skill-augmented framework that builds a

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