The charm of old songs goes beyond nostalgia. Most people born in the 1970s and 1980s likely agree: we always prefer listening to old songs to listening to newer releases. This has become almost a conventional wisdom, a tacit understanding shared by generations. Whenever those familiar melodies sound,...

1 Introduction: I usually use Obsidian (Markdown) to write blogs on macOS. Inserting images is unavoidable during writing, so an image hosting solution becomes an unavoidable issue. My blog's image hosting solution is hosted on Cloudflare...

1 前言 写下这些关于唱歌、声音、听觉与认知的文章，其实并不是一开始就有“音乐专题”的打算。更多时候，只是因为在练歌、听歌、研究相关理论时，反复遇到一些靠感觉解释不清的问题。 随着文章一点点积累，我才…

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...

1 Introduction: My usual AI usage habits have always been quite simple—my priority has always been: 1. ChatGPT official client (I use the free quota, as I don't use it much anyway, and if I occasionally exceed the quota, I just wait a few hours as a forced break); 2. LobeChat...

1. Preface: It's been a while since I've updated the AI learning map on my blog. It's not that my interest in AI has waned; quite the contrary. Many ideas and explorations have already taken shape in my mind. The real reason I've stopped is actually very simple: many practical scenarios ultimately involve the "paid AI" model.