Blog

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• About

  Raymond ZHAO Wenlong is a product-minded engineer, and founder@Bean based in Hong Kong now. This blog is connected with his Second Brain — a repository of knowledgecurated over the years. Outside of r

• About Hash Algorithms

  An introduction of Hash function

• About Priority Queue

  About Priority Queue

• An overview of Natural Language Processing and Linguistics

  An overview of Natural Language Processing and Linguistics

• Bookshelf

  log of trainings & books and my ratings reading-2026 - [How to Live an Extraordinary Life] by Anthony Pompliano (8/10) - [When Love Meets Fear: Becoming Defense-less and Resource-full] by David Richo

• Coaching

  Coaching Know thyself in order to understand your own limitations, biases, character, motivations, thus live a life you love most. It emphasizes radical self-awareness.

• docs

  notes on tools I am using Macvim Rectangle + cmd+crl+<- -> Left Half + cmd+crl+-> -> Right Half + q cmd+ctl+return -> Full Screen iterm2 + cmd+shift+D -> splits the window vertically + cmd+D -> splits

• Hello, World!

• How LLMs Actually Work

  [Updating] Notes on Large Language Models

• ideas

  Edit Your ideas and project concepts on GitHub Search historical photographs - 08 Wucheng, Shandong in 1890 - 09 Tibet in 1985 - 03 HongKong in the 1970s - 07 Shanghai in 1971 - 06 Duji

• links

  links - theoutline - acmqueue - Video lectures - GRANTS in USA - especailly in small business - NASA - thewirechina wiki crlf.link Devine Lu Linvega's wiki insightful - Startup Playbook - How to Get R

• Logic Gate

  XOR

• Mans search for meaning

  There is much wisdom in the words of Friedrich Nietzsche: 'He who has a why to live for can bear almost any how.'

• Math is the Basis of Science

  總結自 [給討厭數學的人]

• Note on The Open-Source Community

  Note on The Open-Source Community

• Notes on "Think and Grow Rich"

  notes on Think and Grow Rich, Rich Dad Poor Dad

• Notes on 'A Short History of the World'

  notes on History

• Notes on '完整的自己'

  完整的自己-快樂和自信的人生

• Notes on '被討厭的勇氣'

  总结自 Alfred Adler /ɑl.frɛt aːdlɐ/ 的《幸福的勇氣》

• Notes on Android SDK dev

  A share about Android NDK - build c/c++ code into shared lib app uses

• Notes on Antifragile

  Randomization of a part of the control is an essential concept of nature's strategy

• Notes on programing languages

  [Updating] Notes on programing languages

• Notes on Stoic Philosophy

  Notes on Stoic Philosophy

• On Education and Learning

  On Education and Learning

• Part one: Happiness Revisited

  This is a summary from the book [Flow], which mainly presents concrete examples and general principles to transform bo

• Part two: The Anatomy of Consciousness

  The summary tries to answer the question: how consciousness works and what it actually means to have experiences?

• Projects

  AI in education

• Search Algorithms: Binary Search

  A symbol table is a data structure for key-value pairs. Binary search in an ordered array can implement the symbol table API.

• Search Algorithms: Binary Search Trees

  Binary search trees (BST) combines the flexibility of insertion in a linked list with the efficiency of search in an ordered array.

• Self-Wiki: a Socratic Mirror with AI

  Notes on coaching

• Similarity Search Algorithms

  Similarity search refers to finding objects that have similar characteristics to the query object.

• Slides

  Some of my Slides! 2026-05 self-wiki: Personal AI-powered wiki + Socratic Mirror - self-wiki is a personal AI-powered wiki + Socratic Mirror service - treat AI as the "OS" and the generated wiki as th

• Sort Algorithms: Priority Queues

  Priority Queues is a data type to find the largest M items in a stream of N items.

• Summary about 'The Effective Executive'

  About how to get the right things done

• Summary about Clustering Algorithms

  Summary about Clustering Algorithms

• Summary about Computer Systems from A Programmer's Perspective

  Summary about Computer Systems from A Programmer's Perspective

• Summary about Economics

  總結自 產權與交易費用

• Summary about Face Recognition with OpenCV

  Summary about Face Recognition with OpenCV

• Summary about Locality-Sensitive Hashing (LSH) Algorithms

  Summary about fingerprint and Locality-Sensitive Hashing Algorithms

• Summary about Probability and Statistics

  [updating] Summary about Probability and Statistics

• Talks

  What follows is a list of talks I've gotten a lot of use or enjoyment out of.

• Understanding your emotions

  Understanding your emotions; And you can Control your life .

• “主客二分”與“天人合一”︰中西哲學比較

  “主客二分”與“天人合一” 以及 比較政治學中的政治文化變遷

• 十年一覺電影夢

  notes on 《十年一覺電影夢》from 李安 (Ang Lee)

• 尋路中國(Country Driving)

  總結自 Peter Hessler的[尋路中國(Country Driving)]

• 思考的技术

  总结自 [思考的技术]

• 江城

  总结自 彼得·海斯勒的[江城(River Town)]

• 生活的藝術

  總結自 林語堂先生的[生活的藝術], 其中主要分享了先生自己的思想和生活所得的經驗