1 Introduction: In my previous articles on RAGs and knowledge bases, the word vector frequently appears. It can be said that vector is one of the core concepts of AI. Anyone who has had some exposure to AI is likely familiar with this term. In fact, even without AI, everyone is familiar with the concept of vector...

1. The Crisis and Value of Personal Blogs Today. Once upon a time, personal blogs (hereafter referred to as blogs) were a beautiful form of writing on the internet. It was an era when everyone was willing to write and share their experiences: programmers recorded their study notes, travelers wrote down their travel stories, and food lovers…

1. The WordPress Caching Dilemma and Solutions 1.1 Why Do Many WordPress Site Owners Prefer to Give Up CDN? In the world of static sites, CDN is almost a "free performance optimization": static files are naturally suitable for caching, and HTML pages are almost...

1 Introduction In the previous article, I reviewed the core concepts and processes of RAG (see the article: Understanding RAG from Scratch in the Home Data Center Series (Part 1): Principles and Complete Process Analysis). However, that was still theoretical, just talk. To truly make RAG work, it must...

1 Introduction I've always had an idea—to build a chatbot for my blog that can understand the content of my blog posts and intelligently answer visitors' questions. While this requirement might seem simple at first glance, its actual implementation involves a series of unfamiliar and complex concepts: such as...