I'm an Economics undergraduate at Southwestern University of Finance and Economics, currently is a visiting student at UC Berkeley focusing on Econometrics and Computational Social Science.

My work sits at the intersection of large language models, agent systems, and empirical economics — building things that are both technically rigorous and practically meaningful.

• 📄 Co-first Author on a paper accepted to ACL 2026 Findings — a dual-process cognitive architecture for role-playing agents that reduces persona drift by 75% and token cost by 87%
• 🔬 Research Assistant at SWUFE School of Economics, building an NLP pipeline over 3–5M government documents to quantify consumption policy intensity and its macroeconomic impact
• 🏆 Global 3rd Prize at the 2025 Soul AI Agent Competition with ScrollWeaver

Co-first Author · ACL 2026 Findings (Accepted)

Designed a cognitive architecture fusing "System 1/2" thinking with Big Five personality traits to solve LLM persona drift in long-horizon simulations.

• −75% persona drift · −87% token cost · 96% performance retained across 50-turn dialogues with 88 characters

Team Lead · 🏆 Global 3rd Prize, 2025 Soul AI Agent Competition

A simulation engine that transforms static texts (novels, lore docs) into interactive living worlds.

Stack: LangChain · FastAPI · WebSockets · ChromaDB · SQLite · D3.js · GPT / Claude

• Orchestrator-Performer architecture: a world-director agent coordinates character agents with persistent memory, personality models, and autonomous social logic
• Real-time 24×12 SVG world map, RAG-powered lore extraction, and exportable world state
• Live demo: scrollweaver.harrycn.com

Solo Developer · class.swufe.chat

SWUFE's open-source course review platform — search courses, rate instructors, view analytics.

Stack: Next.js · React · Django REST · PostgreSQL · Redis · Docker · Nginx

• Full auth system, async task queues (Huey), visitor analytics, instructor rating
• One-click Docker Compose deployment with automated backup and recovery

AI-powered PDF submission & auto-grading via Gemini, with class analytics

Stack: React · TypeScript · FastAPI · SQLite · Gemini API

Nonprofit landing page for jiaocaibang.com — AI tools for educators

Stack: React · TypeScript · Vite · Node.js

Python (PyTorch, Pandas, NumPy), SQL, Stata, LaTeX, Linux, Docker, Git

Computational Social Science · NLP · LLM Agents · Econometrics · Quantitative Finance

I'm interested in using language models as measurement instruments for social science — treating text at scale as economic data.