MpSub: A Momentum p-Dimensional Subspace Trust-Region Method for Derivative-Free Fine-Tuning of Large Language Models

arXiv:2609.07666 · cs.LG, math.OC · Submitted 2026-09-07 · Read on arXiv

cs.LG, math.OC

Submitted: 2026-09-07

Updated: 2026-09-07

Comments: 16 pages, 2 figures, 2 tables

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Fine-Tuning — 3× in this paper · explained in 5 episodes

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