1 Prologue: From Chaos to Having to Use the Word “System” If you just look at the article titles, my blog content indeed seems to be getting more and more “miscellaneous”: extending from home data centers, Docker, WordPress, Cloudflare, active-active architecture, and AI...

1 When Embedding Moves from Experiment to Basic Capability In the previous article introducing RAG, I introduced that the core tool for vectorizing segmented text is the "embedding model" (see article: Understanding RAG from Scratch (Part 1): Principles and Complete Process Analysis), and also in the subsequent...

1 Preface In the previous article (see article: Home Data Center Series - Understanding RAG from Scratch (I): Principles and Complete Process Analysis), I introduced the theoretical five-step process of RAG: “Chunking → Vectorization → Vector Storage → Retrieval → Answer Generation”; subsequently...

1 Preface I believe everyone has seen a scene in movies and TV dramas that has almost become a “conditioned reflex”: on the monitor, the ECG suddenly flattens into a straight line; the atmosphere suddenly freezes, the doctor shouts, and the defibrillator comes into play; “Clear!”—after the electric shock, the ECG waveform miraculously re...

1 Starting from the Black and White Keys: The Smallest Structural Unit of the Music System In the previous article (see: Awakening of Voice · Foundation (I): Pitch Structure and Auditory Stability), I mentioned an important fact: the fifth relationship describes the auditory closeness between pitches. For example, C and ...

1 When Stability Begins to Require Maintenance The direct reason for writing this article is that a cross-border transit service provider I have long relied on (which I have always considered to be the most professional technically) finally collapsed recently, causing the access architecture that had been running stably for years to instantly fail. This change forced me to re...

1 The Huge Pit Encountered When Logging into Telegram on a New iPad Recently, considering that I no longer have the need for mobile office, I sold my idle M1 MacBook Pro and iPad mini 6 at home on Zhuanzhuan: then added some money to exchange for a cellular version with national subsidies ...

1 WordPress Email Notifications Control Issue Regarding the email notification function of WordPress, most friends who use WordPress to build websites should be familiar with it, right? Whether it is the automatic upgrade of the core version, the automatic upgrade of plugins, or a new...

1 Before Talking About Bass, Mid, and High I believe many music lovers have seriously thought about such a question: does their voice count as bass, mid, or high. This question does not seem complicated, and it even seems that an answer can be obtained through a simple vocal range test: how high can you sing...

1 Preface Actually, I have wanted to write an article about iptables for a long time, because although I don't use it usually, every time I really need to use it, I always find that the relevant knowledge points have been completely forgotten, and I have to read it from the beginning again. This is the result of learning a certain knowledge point without reinforcing memory through writing...