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evelindsayyy/README.md

Luman (Grace) Zhan

Computer Science at Duke University with a minor in Machine Learning and Artificial Intelligence. I build AI systems end to end, then design the evaluation needed to show where they work, where they fail, and whether their outputs deserve trust.

I am targeting Summer 2027 AI & machine learning and SDE internships.

1. What I Build

My strongest work sits at the intersection of applied ML, LLM systems, evaluation, and product engineering. I enjoy taking a system from experiment to deployed interface, adding measurable quality gates, and documenting the tradeoffs honestly.

Current focus areas include LLM-as-judge methodology, execution-based evaluation, human preference studies, open-weight inference with vLLM and SLURM, and preference alignment with QLoRA and DPO.


2. Featured Systems

Project What it proves Stack and evidence
AI Model Advisor (live system) Production model governance across artifact security, adversarial safety, institutional evaluation, and public benchmarks Flask, Postgres, Docker, LLM-as-judge, execution scoring, vLLM, SLURM, 1,272 Python tests
LyricMood (live demo) Fine-tuned text classification with interpretable predictions and semantic retrieval over 76,000 songs DistilBERT, ONNX, FastAPI, SHAP, Qdrant, 106 tests
Deadline Tracker (live app) A production web app built around a real daily workflow, with natural-language entry and university integrations Next.js, TypeScript, Supabase, Vercel, PWA, 781 tests
Trading Agent Analyzer (live demo) A usable web product around a multi-agent research engine, with durable run history and cost controls LangGraph, Streamlit, Postgres, Docker, DeepSeek

3. Current Work

At Duke Code+, I own major parts of the efficacy and report-card experience for AI Model Advisor. My work includes rubric and execution-based LLM evaluation, a frozen evaluation contract, a six-rater judge validation study, DCC-hosted open-weight inference, cost-versus-performance analysis, and the frontend used to launch and compare runs.

I also contribute to sickle-cell-disease data research at the Duke Global Health Institute.


4. Technical Toolkit

Area Tools
ML and alignment PyTorch, Hugging Face Transformers, TRL, PEFT, QLoRA, DPO, ONNX
LLM systems LiteLLM, LangGraph, LLM-as-judge, vLLM, SLURM, structured evaluation
Backend and data Python, FastAPI, Flask, Postgres, Supabase, Qdrant
Product and operations TypeScript, Next.js, React, Docker, GitHub Actions, Vercel

5. Contact

LinkedIn · lz302@duke.edu

Pinned Loading

  1. security-and-qa-for-ai-models security-and-qa-for-ai-models Public

    AI model governance platform for artifact scanning, red teaming, LLM evaluation, public benchmarks, and deployable report cards.

    Python 1

  2. lyrics_mood_predictor lyrics_mood_predictor Public

    Song-lyric mood prediction with explanations: FastAPI + ONNX serving a fine-tuned DistilBERT and a SHAP-explainable baseline, Qdrant vector search over 76k songs, CI, live demo.

    Jupyter Notebook 1

  3. ddl_reminder ddl_reminder Public

    Next.js + Supabase deadline tracker: natural-language entry, email reminders, Apple Calendar feed, Canvas & Gradescope sync, mobile PWA.

    TypeScript

  4. trading-agent-analyzer trading-agent-analyzer Public

    Multi-agent LLM stock analysis: Streamlit web app on the TradingAgents engine (LangGraph) — ticker in, debated buy/sell/hold analysis + beginner cheatsheet out.

    Python