Author

Yuzhi Yang

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#machine learning Preprint Oct 2026

FedFit: Federated Fine-Tuning of LLMs via Vector-Bank Parameterization and Quantization

Federated Learning (FL) enables privacy-preserving fine-tuning of Large Language Models (LLMs), yet the massive communication overhead remains a critical bottleneck. Furthermore, applying Low-Rank Adaptation (LoRA) in FL faces a fundamental"aggregation dilemma"between the accurate Sum-of-Products (SoP) and the communic...

Han Zou, Chao Zhang, Yu-Zhi Yang et al. · 0 citations

Preprint Aug 2026

A JEPA-Based Field-Layer World Model for Bridging Channel Prediction and Estimation

Experiments on single-band and cross-band reconstruction demonstrate improved symbol detection and, more notably, substantial beamforming gains despite modest NMSE improvements, indicating that FWM captures task-relevant spatial propagation structure beyond coefficient-wise CSI fitting.

Yu-Zhi Yang, Brahim Mefgouda, Han Zou et al. · 1 citation