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Hi, I'm Jason (Zihan Dai) 👋

Bachelor's student @ University of Melbourne | CS & AI & Data Science

Currently focusing on LLM alignment, Text-to-SQL, and AI systems engineering.


🤖 LLM & AI Research

Project Description Tech Stack
FusionSQL Text-to-SQL solution with BGE-M3 fusion retrieval (table-level ∪ column-level), achieving 95.7% recall rate Python, BGE-M3, Qwen, FlagEmbedding
text2sql_research Text-to-SQL with graph structure & RAG Python, LangChain, Graph DB
LLM-Research-Internship-2025 Technical notes on LLM alignment & prompt engineering Markdown
2024_ai_intership_log AI system development: multimodal ad review with ReAct architecture Python, FastAPI, LangChain, Docker

🔧 Engineering Projects

Project Description Tech Stack
MarsCode_Winter_project Heimdallr: Full-stack frontend monitoring system with SDK, backend & dashboard TypeScript, Vue, MySQL

📊 Data Science

Project Description Tech Stack
EODP-project Crime rate prediction in Victoria using socio-economic factors Python, Jupyter, Scikit-learn

📚 Course Projects

Project Description Tech Stack
OOSD-project Shadow Donkey Kong: 2D arcade game with enemy system Java, Bagel Engine
ads-project2 Algorithm & data structure implementations C

🌍 Open Source Contributions

Project Description Status
apache/beam Distributed data processing framework 3 PRs merged
apache/shardingsphere Database middleware 2 PRs merged
apache/iceberg Open table format 1 PR merged
apache/iotdb Time-series database PRs in review
apache/seatunnel Data integration platform PRs in review
opencv/opencv Computer vision library 1 PR merged

Tech Stack

Languages: Python · TypeScript · Java · C · SQL

AI/ML: PyTorch · LangChain · Transformers · RAG · ReAct

Backend: FastAPI · Node.js · MySQL

Tools: Docker · Git · Jupyter

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