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Ellen Vitercik

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#machine learning Preprint Sep 2026

DCEmbed: Scalable Optimization over Neural Surrogates

DCEmbed is proposed, a heuristic for optimization problems with embedded neural surrogates that leverages the difference-of-convex (DC) representation of the network and avoids adding activation binaries, and demonstrates much faster progress toward high-quality feasible solutions than approaches using exact mixed-inte...

Akshay Sreekumar, Nicolas H. Christianson, P. Donti et al. · 0 citations
#artificial intelligence Preprint Sep 2026

Compositional Reasoning in Language Models under Reinforcement Learning Post-Training

A dependency-graph framework is proposed to formalize compositional reasoning, yielding three levels of compositionality with increasing complexity, and preliminary evidence that the decomposed-to-composed asymmetry can extend to practical settings is presented.

Yu He, Ying-Xi Li, Yi-Fei Wang et al. · 0 citations
Preprint Aug 2026

FLARE: Verifying MILP Reformulations with LLM-Based Theorem Proving

This work develops FLARE (Formulation-Level Automated Reformulation Evaluation), a method that uses an LLM-based agent and the Lean proof assistant to verify proposed reformulations against a reference formulation to enable reliable verification in automated optimization modeling.

Henry W Robbins, Connor Lawless, Madeleine Udell et al. · 1 citation

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