Author

Jia-Xiang Geng

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Sep 2026

Geometric Feature-Aware Trajectory and Offloading Joint Optimization for Multi-UAV Networks

This paper investigates joint trajectory planning and computation offloading in multi-UAV assisted mobile edge computing (MEC) networks within complex 3D urban environments. Existing deep multi-agent reinforcement learning (MARL) methods often oversimplify obstacles as geometric no-fly zones, ignoring fine-grained chan...

Bo-Wen Zhao, Zhe Zheng, Jia-Xiang Geng et al. · IEEE International Symposium... · 0 citations

#large language models Preprint Sep 2026

Just Talk Once: Communication-Efficient Split Federated LLM Fine-Tuning on Edge Devices

L-shaped SFT is presented, a split fine-tuning framework that removes the need for continuous client participation and introduces one-shot SFT, in which clients upload activations once and then go offline while the server continues optimization over cached representations.

Jia-Xiang Geng, Xian-Hao Chen, Bing Luo · 1 citation

#machine learning Preprint Aug 2025

FlexP-SFT: A Flexible Aggregation-Free Framework for On-Device Personalized Split Federated Fine-Tuning of LLMs

FlexP-SFT is proposed, a novel aggregation-free framework for personalized split federated fine-tuning, which fundamentally eliminates the client-side aggregation process and introduces a layer-flexible alignment strategy to balance personalization and generalization capabilities.

Jiaxiang Geng, Tianjun Yuan, Pengchao Han et al. · 3 citations