I'm Xinyu Chen(Brian), a data science student in University of California, San Diego and interested in big data, LLM, and AI.
Programming Languages: Python, Java, Swift, C, C++, R, SQL
Machine Learning & Data: PyTorch, Scikit-learn, XGBoost, LightGBM, Pandas, NumPy, Jupyter Notebook
Backend & Mobile: Flask, REST APIs, Celery, Redis, SQLite, SwiftUI, Jetpack Compose, MVVM
Analytics & Big Data: Snowflake, Hive, Hadoop, KNIME, Tableau, Power BI
Methods: Ensemble Learning, Neural Networks, Regression, Hypothesis Testing, A/B Testing, Segmentation, Causal Inference
| Project | What It Does | Technologies & Highlights |
|---|---|---|
| Campus Card & Utility Fee Query System Backend · iOS · Android |
A cross-platform system for querying campus card balances and dormitory water and electricity fees. It supports email verification, scheduled queries, history records, and iOS push notifications. | Flask, Celery, Redis, SQLite, REST APIs, SwiftUI, Combine, Jetpack Compose, Kotlin Coroutines, MVVM |
| Kaggle Personality Classification | Predicts introvert and extrovert personality labels from behavioral features using a multi-stage ensemble pipeline. | Random Forest, XGBoost, LightGBM, MLP feature extraction, stacking, SMOTE, cross-validation; 97.17% validation accuracy |
- Stanford CS231n — Computer vision and deep learning implementations
- Dive into Deep Learning — Deep learning exercises and experiments
- MIT 6.S081 — Operating systems coursework and xv6-based projects
- Software Engineering and System Design
- Machine Learning and Statistical Modeling
- Big Data Processing and Distributed Computing
- Data Analytics and Business Intelligence
- LinkedIn: xinyuchen04
- Email: cxy7988@gmail.com
- Blog: cxy7988.gitHub.io