River Shen
My Chinese name is 沈書禾. I work on RAG, backend and information systems, and have written two papers. This site is where I keep what I have built, plus a few notes.

Who I am
I tend to build first and ask questions later. Over my undergraduate years I built systems, took on industry projects and tried starting a company with friends. Somewhere along the way that turned into writing papers.
I am now applying to graduate school, where I want to take the problems I ran into in real deployments and study them properly.
More about me →Research
All research →Domain-Aware RAG: citations you can trace, permissions that hold
My first paper. A RAG architecture for traditional financial institutions that fixes two problems, unreliable citations and permissions that are too coarse.
A Cloud-AI architecture for grassroots financial cooperatives
A case study of the credit department of an urban farmers' association, turning front-line pain points and knowledge loss into a system that combines electronic forms with RAG-based knowledge retrieval.
Projects
All projects →AI platform for farmers' association operations
Turning a farmers' association's scattered regulations, scanned forms and complicated permissions into one system that can answer questions and fill in forms automatically.
Praxis AI
Starting a company with friends to turn RAG and AI agents into an enterprise knowledge management product, and joining the NTU Garage incubator.