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nanhe-ai/README.md
Nanhe — Computer Science PhD Researcher and AI Systems Engineer

I build grounded, inspectable AI systems for knowledge, documents, and real-world workflows.

Explore the portfolio CI status


Research thesis

Capable AI is not enough. Production systems should be grounded in evidence, clear about uncertainty, and designed around human judgment.

I am a Computer Science PhD researcher working across retrieval-augmented generation, document intelligence, knowledge systems, and human-in-the-loop automation. My work connects research ideas with reliable software that people can inspect, evaluate, and use.

Current focus

Research direction What I work on
Reliable RAG Grounded retrieval, citation quality, evaluation, and evidence-aware refusal
Document intelligence Extraction and validation pipelines for invoices, contracts, PDFs, and business records
Human-centered automation Reviewable workflows that preserve control around consequential external actions
Applied AI engineering FastAPI services, local-first systems, model integration, testing, and production-minded demos

Featured work

Northstar Systems AI Operations Portfolio

A cohesive portfolio of three independently runnable, local-first AI products. Each project includes an English interface, documented API, tests, sample data, Docker configuration, and a client-facing demo path.

Product Workflow Trust boundary
InquiryPilot Gmail inquiry → qualified lead → Sheets record → Gmail draft Deduplication, explicit approval, draft-only automation
ExtractFlow PDF, invoice, or contract → structured review queue Source evidence, confidence scoring, validation, XLSX/CSV/JSON export
CiteDesk Business documents → grounded multi-turn answers File/page citations and low-evidence refusal

How I build

Evidence before confidence  ·  Human review before external action
Local-first when privacy matters  ·  Clear handoff before hidden complexity

Languages & systems
Python · JavaScript · FastAPI · SQLite · Chroma · Docling · n8n · Docker

AI engineering
RAG · Embeddings · Information Extraction · Evaluation · Prompt Engineering · OpenAI API

Collaboration

I am open to research collaboration and selective engineering work involving RAG, document processing, internal knowledge systems, and reviewable AI automation.

Start with the working systems: code · product previews · architecture · demo guide

For a project conversation, open an issue with a short, non-confidential description of the workflow you want to improve. Please never include credentials, customer records, or private documents in a public issue.

Reliable AI systems · Designed for evidence, control, and real use

Pinned Loading

  1. AI-Freelance-30Day AI-Freelance-30Day Public

    Three local-first AI operations demos: lead qualification, document extraction, and cited knowledge Q&A.

    Python 1