About
I am an algorithm engineer at Qiyuan Lab, mentored by Yukun Yan and Zhiyuan Liu.
Prior to this, I obtained my Master’s degree from Northeastern University, advised by Zhenghao Liu and Chenyan Xiong.
My current research interests focus on Retrieval-Augmented Generation (RAG) and Agentic RL.
News
2025-11
UltraRAG has reached 2,000 stars on GitHub!
Selected Publications
View All →UltraRAG v2: A Low-Code MCP Framework for Building Complex and Innovative RAG Pipelines
Sen Mei, Haidong Xin, Chunyi Peng, Yukun Yan, Others
OpenBMB
A Low-Code MCP Framework for Building Complex and Innovative Retrieval-Augmented Generation systems.
RAG-DDR: Optimizing Retrieval-Augmented Generation Using Differentiable Data Rewards
Xinze Li†, Sen Mei†, Zhenghao Liu, Yukun Yan, Others
ICLR
RAG-DDR is an end-to-end method that aligns RAG modules through data rewards, enabling LLMs to use retrieved knowledge more effectively than SFT.