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Tetiana Parshakova

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#artificial intelligence Preprint Oct 2026

SoftServe: A Scalable Quasi-Newton Method for Deep Learning

Quasi-Newton (QN) methods have long been among the most effective methods for large-scale unconstrained convex optimization. Two obstacles have limited their use in deep learning: non-convexity and enormous parameter sizes. We introduce SoftServe, a family of QN methods designed to overcome these obstacles without line...

Joohwan Ko, Tetiana Parshakova, Diana Cai et al. · 0 citations
Jul 2026

PoLoRA: A Preconditioned Orthogonalized LoRA Optimizer

PoLoRA is introduced, a Preconditioned Orthogonalized LoRA optimizer built from three ingredients: a product-aware spectral update direction, curvature preconditioning derived from controlling the per-sample loss change, and a magnitude rule that controls the sizes of both the factor and merged updates.

Nikhil Ghosh, Tetiana Parshakova, Robert M. Gower · 1 citation

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