LLM Recommendation Systems: Retrieval, Ranking, RAG, and Evaluation
Recommendation systems create a tempting illusion: the newer the model, the more advanced the system. Anyone who has operated one knows that the …
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Tools, agents, and engineering practice
Gemini Notebook (Formerly NotebookLM): A Source-Grounded Research Workflow
On July 16, 2026, Google renamed NotebookLM to Gemini Notebook. The old name will remain in search results, screenshots, and habits for a while, but …
Test-Driven Development for AI and LLM Applications: A Practical 2026 Guide
Test-driven development is easy to explain when the function under test adds two numbers. Write a failing test, make it pass, then improve the …
Microsoft MarkItDown 0.1.6: A Practical Document-to-Markdown Guide
A document converter is a bridge, not a source of truth. The important question is not whether the output looks clean at first glance, but whether …
LangGraph Architecture in 2026: StateGraph, Persistence, and Recovery
This project is an ongoing journey - learning AI open source projects with steady, daily progress. Through hands-on work with real projects and AI …
LangChain 1.x in Production: Choosing Models, Agents, and LangGraph
LangChain used to be introduced as a box of chains, memory classes, prompt templates, loaders, and integrations. That description is historically …
Growth & Life
Growth, reflection, and lived experience
2024 Annual Review
Introduction and self-positioning Annual Preface and Background 📅 Hi! 2025 ~ TIP: This article has a high density of information and is highly …
Open Source Resume Builders & Career Tips
In the vast sea of job hunting, a well-prepared resume acts like a well-designed sailboat, helping you navigate through the fierce waves of …
In 2023, I Was Wandering at the Edge of the World
about me #Last College Career #Travel Observations #Transnational Adventure #Life Change #Growth Story #Exploring the Unknown #Memoir #Cultural …
Combining GitHub and Google Workspace for Effective Project Management
Project Management - Google Edition I wrote an article before Project management from theory to practice . It introduces Github’s project management …
Brain-Friendly English Learning Strategies
After researching a large amount of information, we summarized the methods of memorizing words and learning spoken English. A problem student in the …
Flow State: Deep Focus and Happiness Guide
Flow State As I mentioned in my previous post on GTD and the Four Quadrant Rule Practice , I have been striving to enhance my focus and efficiency. …