collaborators

9 papers

cs.AI2026

Replacing Parameters with Preferences: Federated Alignment of Heterogeneous Vision-Language Models

Shule Lu, Yujing Wang, Hainan Zhang +5

Vision-Language Models (VLMs) have broad potential in privacy-sensitive domains such as healthcare and finance, yet strict data-sharing constraints render centralized training infe…

cs.AI2026

ExpressMind: A Multimodal Pretrained Large Language Model for Expressway Operation

Zihe Wang, Yihuan Wang, Haiyang Yu. Zhiyong Cui +4

The current expressway operation relies on rule-based and isolated models, which limits the ability to jointly analyze knowledge across different systems. Meanwhile, Large Language…

cs.AI2026

Replacing Parameters with Preferences: Federated Alignment of Heterogeneous Vision-Language Models

Shule Lu, Yujing Wang, Hainan Zhang +5

VLMs have broad potential in privacy-sensitive domains such as healthcare and finance, yet strict data-sharing constraints render centralized training infeasible. FL mitigates this…

cs.CL2026

FedMosaic: Federated Retrieval-Augmented Generation via Parametric Adapters

Zhilin Liang, Yuxiang Wang, Zimu Zhou +3

Retrieval-Augmented Generation (RAG) enhances Large Language Models (LLMs) by grounding generation in external knowledge to improve factuality and reduce hallucinations. Yet most d…

cs.IR2025

Can Synthetic Query Rewrites Capture User Intent Better than Humans in Retrieval-Augmented Generation?

JiaYing Zheng, HaiNan Zhang, Liang Pang +2

Multi-turn RAG systems often face queries with colloquial omissions and ambiguous references, posing significant challenges for effective retrieval and generation. Traditional quer…

cs.AI2025

HyFedRAG: A Federated Retrieval-Augmented Generation Framework for Heterogeneous and Privacy-Sensitive Data

Cheng Qian, Hainan Zhang, Yongxin Tong +2

Centralized RAG pipelines struggle with heterogeneous and privacy-sensitive data, especially in distributed healthcare settings where patient data spans SQL, knowledge graphs, and…

cs.CL2025

Privacy-Preserving Reasoning with Knowledge-Distilled Parametric Retrieval Augmented Generation

Jinwen Chen, Hainan Zhang, Liang Pang +5

The current RAG system requires uploading plaintext documents to the cloud, risking private data leakage. Parametric RAG (PRAG) encodes documents as LoRA parameters within LLMs, of…

cs.CL2025

FedSEA-LLaMA: A Secure, Efficient and Adaptive Federated Splitting Framework for Large Language Models

Zishuai Zhang, Hainan zhang, Weihua Li +4

Private data holds promise for improving LLMs due to its high quality, but its scattered distribution across data silos and the high computational demands of LLMs limit their deplo…

cs.CL2025

Learning to Erase Private Knowledge from Multi-Documents for Retrieval-Augmented Large Language Models

Yujing Wang, Jinwen Chen, Hainan Zhang +5

Retrieval-Augmented Generation (RAG) is a promising technique for applying LLMs to proprietary domains. However, retrieved documents may contain sensitive knowledge, posing risks o…