Yuan Jack Yao StarsExpress

😃 Hi Everyone~I am Yuan Jack Yao

Prev. Summer DS III Intern @ Walmart
- Sam's Club AI Acceleration Team
- Agentic AI Infra & Platform
- Vision Intelligence: E2E System, RAG
Former Full-time Junior DS @ SUEZ
- Smart & Environmental Solutions (SES) China
- Client-facing product delivery
- NLP | Time Series | DBSCAN | Linux

Graduate TA — CS 6604 Conversational AI
- Voice Agent: EOS → ASR → LLM → TTS of 4% ASR word error rate
- EOS-to-first-audio: p50 ≤ 275 ms & p95 ≤ 417 ms vs. 800 ms benchmark
- AI Harness: designed auto evals to separate submissions quality
- RAG with cross-session memory | LoRA SFT | DPO
School of Computational Science & Engineering
- Expected graduation: December 2026

Name	Description	Status
🏈LinesShines · 鋒光	NFL & NCAAF metrics system — iOS/Android/macOS/Windows installable: NFL & NCAAF season-by-season stats. NCAAF prospects: college careers benchmarked against history. Unit strength analysis — teammates tables embedded in player cards. Pinnable, mergeable, draggable player cards, with live-updating ranks. Highlight any mix of teams and players, with percentiles unchanged. Smart name search by fuzzy matching, including suffixes. Exportable high-resolution PNGs — big plots, individual and team cards.	✅Deployed
🎰JOB: Jack's Online Blackjack	Casino-style Blackjack — iOS/Android/macOS/Windows installable: Support up to 4 split hands for all non-Ace pairs. Allow conditional double down after split options. Automatic tracker for each round's profits & losses history. Polished gameplay experience mimicking casino tables.	✅Deployed
🏇天码行空 · SkyHorse	Chinese-English Bilingual DSA tech blog: Cover 30+ LeetCode Hard problems' tutorials. Intuition, step-by-step implementation, complexity analysis. All code implementations include both Python and C++.	✅Deployed
🌏EcoTeller	LoRA fine-tuned Qwen2.5-3B-Instruct for environmental issue extraction from related news titles.	🪏Frontend planning

Product	Role	Repo	Contributions
Code Puppy	Coding Agents	880⭐, 297🍴	Merged PRs: Cut down idle CPU wake-ups by 88.5% for Agent-UI communications. Discovered and added missing thread lock for user responses. Restored silently-dropped Gemini config. Unified tools' drifted file-read process. Aligned 20+ inconsistent config parser calls.
Pydantic AI	Agentic AI Framework	21.1K⭐, 3.1K🍴	Merged PRs: unified API errors handling pattern across Google & Cohere embedding models by extracting shared context managers.
LeetCode Wiki	DSA Library	36.8k⭐, 9.5k🍴	Added 8 optimal solutions and tutorials for hard problems.
The Algorithms	Algorithms Tutorials	226k⭐, 51.3k🍴	Generalized optimal Kth next greater element method at $O(k \times n)$ time complexity.