中文介绍

What this site covers

This site is a long-form notebook for four recurring themes:

• AI: LLM systems, NLP, evaluation, and applied engineering.
• Quant: low-frequency quantitative research, backtesting, and tooling.
• Career: decisions about research, industry, and long-term growth.
• Immigration: process notes, timelines, and practical lessons.

Where to start

• Start with AI if you want technical work.
• Use Quant for trading research and experiments.
• Use Career and Immigration for life and relocation notes.
• Jump to Search if you already know the topic.

Research and engineering focus

• Applied LLM and NLP systems.
• Causal inference and machine learning methods.
• Data infrastructure, PySpark, Hive SQL, and production engineering.