collaborators

12 papers

cs.AI2026

A Unified Framework for Context-Aware and Relation-Aware Graph Retrieval-Augmented Generation

Haoyang Zhong, Yifei Sun, Antong Zhang +3

Retrieval-Augmented Generation (RAG) has emerged as a paradigm for enhancing large language models (LLMs) with external knowledge, yet existing graph-based methods face a fundament…

cs.CR2026

Securing Retrieval-Augmented Generation: A Taxonomy of Attacks, Defenses, and Future Directions

Yuming Xu, Mingtao Zhang, Zhuohan Ge +7

Retrieval-augmented generation (RAG) extends large language models (LLMs) with external knowledge, but this access path also introduces security risks that existing work often conf…

cs.AI2026

QCFuse: Query-Aware Cache Fusion via Compressed View for Efficient RAG Serving

Jianxin Yan, Wangze Ni, Zhenxin Li +8

Retrieval-augmented generation (RAG) improves large language model (LLM) answer quality by grounding generation in external evidence, but processing retrieved contexts makes the pr…

cs.CL2026

Toward Autonomous Long-Horizon Engineering for ML Research

Guoxin Chen, Jie Chen, Lei Chen +7

Agentic systems increasingly automate pieces of AI research. Yet turning underspecified research objectives into runnable, experimentally validated ML systems remains a central bot…

cs.DC2026

ECHO: Elastic Speculative Decoding with Sparse Gating for High-Concurrency Scenarios

Xinyi Hu, Yuhao Shen, Baolin Zhang +6

Speculative Decoding promises to accelerate the inference of Large Language Models, yet its efficacy often degrades in production-grade serving. Existing evaluations typically over…

cs.DB2026

GRACE: A Dynamic Coreset Selection Framework for Large Language Model Optimization

Tianhao Tang, Haoyang Li, Lei Chen

Large Language Models (LLMs) have demonstrated remarkable capabilities in natural language understanding and generation. However, their immense number of parameters and complex tra…