3 papers
cs.LG2026
AdaPreLoRA: Adafactor Preconditioned Low-Rank Adaptation
Ziyun Liu, Fengmiao Bian, Jian-Feng Cai
Low-Rank Adaptation (LoRA) reparameterizes a weight update as a product of two low-rank factors, but the Jacobian of the generator mapping the factors to the weight matrix…
cs.LG2025
Fast and Provable Tensor-Train Format Tensor Completion via Precondtioned Riemannian Gradient Descent
Fengmiao Bian, Jian-Feng Cai, Xiaoqun Zhang +1
Low-rank tensor completion aims to recover a tensor from partially observed entries, and it is widely applicable in fields such as quantum computing and image processing. Due to th…
math.OC2023
Stochastic Three-Operator Splitting Algorithms for Nonconvex and Nonsmooth Optimization Arising from FLASH Radiotherapy
Fengmiao Bian, Jiulong Liu, Xiaoqun Zhang +2
Radiation therapy (RT) aims to deliver tumoricidal doses with minimal radiation-induced normal-tissue toxicity. Compared to conventional RT (of conventional dose rate), FLASH-RT (o…