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Hi, I'm Xinwei

Undergraduate
@ UC Berkeley
Class of 2027

My Resume

Flagship Projects

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QCAST ESL English Tutor

AI-powered English tutor for non-native speakers using GPT-4 and Qwen 2.5. Features multi-style tutoring with 95% accuracy in detecting user preferences.

Next.jsTailwind CSSGPT-4Qwen-2.5spaCy
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CharityML

ML model to predict income levels from census data. Engineered features and optimized scikit-learn classifiers achieving 92% accuracy and 85% F-score.

Jupyter NotebookScikit-learnPythonPandas
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PyAnalyze

Python static analysis tool with AST parsing, call graph construction, and backward slicing that reduces code reading by 50%+. Interactive D3.js visualization, REST API, and CLI.

PythonNetworkXFlaskReactD3.js
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Technology Stack

Frontend

React
React
Next.js
Next.js
Tailwind CSS
Tailwind CSS
Bootstrap
Bootstrap

Backend

Python
Python
Flask
Flask
Java
Java

AI & Machine Learning

spaCy
spaCy
PyTorch
PyTorch
scikit-learn
scikit-learn

Tools & Others

Git
Git
Selenium
Selenium
BeautifulSoup
BeautifulSoup