Live Streaming infra and protocols

March 24, 2025 · 3 min read · Page View:

In our daily life, you may always see the live streaming on the internet, such as the live streaming of the video conference, the live streaming of the sports event, the live streaming of the online course, etc. And sometimes you even start your own live streaming, but we all get used to just clicking the button on the screen to start the live streaming, do you know what is happening behind the scene?

Implement danmaku rendering algorithm from scratch

March 22, 2025 · 21 min read · Page View:

This article presents a comprehensive implementation of a danmaku rendering algorithm from the ground up, along with a thorough analysis of the danmaku rendering algorithm. The source code is available on GitHub^[1].

Is There an Rss Renaissance in the AI Era?

March 21, 2025 · 9 min read · Page View:

RSS: RDF Site Summary or Really Simple Syndication。

如果说 search 是信息 pull 的代表，那毫无疑问，RSS 就是信息 push 的代表。简单地讲，就是一种信息聚合的服务，通过一种标准化的消息来源的格式规范，聚合多个网站的内容更新并且通知订阅者。尽管听起来很复杂，但是 RSS 本质上只需要两步，从目标网站上找到 RSS 链接，并把它添加到自己内容收取的服务里。

Stock Prices

March 20, 2025 · 1 min read · Page View:

This is a tutorial for stock prices in the context of random processes.

Possion Processes

March 19, 2025 · 18 min read · Page View:

This article is mainly about the Poisson processes in the book “Random Processes” by Gregory F. Lawler.

Docker With GPU

March 18, 2025 · 2 min read · Page View:

This post is to introduce how to use gpu in docker, which also covers the basic usage of gpu on the host machine.

Stochastic Processes

March 15, 2025 · 20 min read · Page View:

Compared to deterministic model, which is specified by a set of equations that describe exactly how the system will evolve over time. In a stochastic model, the evolution is at least partially random and if the process is run several times, it will not give identical results.

Some Useful Tools

March 13, 2025 · 0 min read · Page View:

Some useful tools for developers.

Note: This post will be updated regularly.

A Shopping Experience in Pang Donglai Supermarket

March 7, 2025 · 16 min read · Page View:

前天在广州找朋友时发现附近有一家永辉超市，它是去年年末自主改调的“胖东来”超市，我一下子来了兴致，之前虽然也去过河南很多城市，但是没有去过许昌和新乡(New York)，而胖东来又不在河南之外开店，所以一直缺少体验的机会。在胖东来仔细转了一遍后，我对胖东来的服务有了更进一步的理解和感受。

Langchain and RAG Best Practices

March 5, 2025 · 16 min read · Page View:

This is a quick-start essay for LangChain and RAG which mainly refers to the Langchain chat with your data^[1] course which are taught by Harrison Chase and Andrew Ng.