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tia-he/README.md

Hi, I'm Tia 👋

I build things with AI, data, and an unreasonable number of browser tabs.

Currently exploring AI agents, ML systems, and full-stack AI products — I like turning messy problems into things that actually work.

🎓 Columbia '26 · Tsinghua '25
📍 New York · San Francisco Bay Area
🐱 The profile picture is a fairly accurate representation of my debugging process.

🚀 What I'm Building

🤖 Computer Use Automation Engine

A reliable execution engine for turning high-level tasks into deterministic UI actions, with logical locators, replay, validation, and safety controls.

TypeScript · Playwright · Vitest

📰 AI Engineer Daily

An AI-powered daily briefing platform that helps software engineers keep up with AI without spending hours reading the news.

Next.js · FastAPI · PostgreSQL · OpenAI

🧠 Credit Risk Sequence Modeling

An end-to-end ML framework exploring Transformer-based sequential behavior modeling, gradient boosting, and ensemble learning for credit risk.

Python · PyTorch · LightGBM · XGBoost

🧪 Currently Exploring

🌾 Kaggriculture Agent — Building an autonomous strategy agent for Kaggle's farming simulation challenge.

📊 Kaggle Playground — Experimenting with feature engineering, gradient boosting, and model ensembling on tabular ML problems.

🛠️ Tech I Use

Languages: Python · TypeScript · SQL
AI / ML: PyTorch · LightGBM · XGBoost · scikit-learn
Backend & Data: FastAPI · PostgreSQL · SQLAlchemy
Frontend: Next.js · React · Tailwind CSS
Tools: Git · Docker · Playwright · GitHub Actions

Building, breaking, learning, repeat.

Pinned Loading

  1. ai-engineer-daily ai-engineer-daily Public

    An AI-powered daily briefing platform that helps software engineers stay up to date with AI and software engineering.

    Python 2

  2. credit-risk-sequence-modeling credit-risk-sequence-modeling Public

    An end-to-end credit risk modeling framework combining feature engineering, Transformer-based sequential behavior modeling, and ensemble learning with synthetic reproducible datasets.

    Python

  3. risk-analytics-engine risk-analytics-engine Public

    End-to-end credit risk modeling pipeline with feature screening, LightGBM/XGBoost training, model evaluation, and automated analytics reporting.

    Jupyter Notebook

  4. childcare-optimization-milp childcare-optimization-milp Public

    Data-driven optimization model (MILP) to solve child care supply-demand gaps with spatial and cost constraints

    Jupyter Notebook