Keep Thriving https://joak.org/ 2026-05-01T01:08:53+00:00 https://joak.org/ https://joak.org/_media/favicon.ico text/html 2018-02-28T05:48:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:acoustics?rev=1519796929&do=diff Acoustics 声学 * 声音能量与频率平方,与振幅平方成正比 * 声音传播的能量衰减系数,与频率平方成正比,参考 Acoustic_attenuation * 扬声器对高频(>14K?)或低频(<50HZ?)的声音的播放会有波动(衰减), 频率响应 声音传输数据 text/html 2021-01-11T05:11:31+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:actor_model?rev=1610341891&do=diff Actor model * Actor model * Erlang 语言采用了此模型。 概念 Actor model 推崇的哲学是“一切皆是 Acotr”，这与面向对象编程的“一切皆是对象”类似。 Actor 是一个运算实体，响应接收到的消息，相互间是并发的： text/html 2025-02-12T01:26:03+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:algorithm?rev=1739323563&do=diff Algorithm 算法 * List of Algorithms * 以前做的一个粗糙的未完成的CLRS笔记 * CLRS 算法导论 * 算法可视化 * Visualizing Algorithms * visualising data structures and algorithms through animation * Algorithms for Competitive Programming 英文电子书， c++ * <https://arxiv.org/abs/2501.02305> 据说这篇论文论证了一个新哈希表，不使用传统的 uniform probing 方法，而是使用了一种新的方法，可以在最坏的情况下以\((log x)^2\)… text/html 2021-11-22T05:26:25+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:articles?rev=1637558785&do=diff 文章收集 * PlayStation 3 架构 * 25 张图，一万字，拆解 Linux 网络包发送过程 text/html 2022-11-17T07:02:22+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:computer_graphics?rev=1668668542&do=diff Computer Graphics 学习目标分解 --- Yongjiu Wei 2015/09/23 07:15 还是比较杂乱,过程中再调整计划. * 基础 * 计算机图形学书中英文 - 思维导图笔记 - 图形学术语中英文对照表CG POVC * 《Fundamentals of Computer Graphics, Third Edition (豆瓣)》 看看有什么不同. * 99行代码的基于Path tracing的光线追踪程序 * text/html 2021-01-08T09:35:23+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:design_pattern?rev=1610098523&do=diff 设计模式 text/html 2021-12-14T09:28:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:eth?rev=1639474096&do=diff Ethereum * Official site * docs Articles * Merkle Patricia Tree 全解析 text/html 2021-04-25T08:20:43+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:information_security?rev=1619338843&do=diff 信息安全 EAL * Evaluation Assurance Level * INTEGRITY OS text/html 2018-02-28T05:48:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:keywords?rev=1519796929&do=diff Keywords * 字符串匹配 Boyer-Moore algorithm * 伪随机数生成算法:线性同余生成器 LCG(linear congruential generator) The generator is defined by the recurrence relation: $$ X_{n+1} = \left( a X_n + c \right)~~\bmod~~m $$ where $ X $ is the sequence of pseudorandom values, and * $ m,\, 0<m $ – the “modulus” * $ a,\,0 < a < m $ – the $ c,\,0 \le c < m $$ X_0,\,0 \le X_0 < m $ text/html 2024-11-22T06:57:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:language?rev=1732258666&do=diff Language * Language tags in HTML and XML Articles * 关于文字排版的一篇文章，讲得很细 * 笔记：FIXME * Typst rust 写的一个排版工具， 可能会在未来替代 LaTeX Translate * 术语在线 * 译文搜索 * Weblate翻译辅助工具 Font * 免费可商用中文字体 Character encoding * Character encoding, 字符编码 * unicode.org; unicode standard * w3c Character encodings: Essential concepts * The Absolute Minimum Every Software Developer Must Know About Unicode in 2023 (Still No Excuses!)… text/html 2024-04-23T05:10:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:machine_learning?rev=1713849016&do=diff Machine Learning 机器学习 * 入门路线 * Machine Learning is Fun,中文翻译 * 网易公开课上的吴恩达机器学习课程, Coursera 版本 * 详细笔记 * Google TensorFlow的深度学习课程:Deep Learning * wiki上的机器学习算法列表：Machine_learning_algorithms * A Tour of Machine Learning Algorithms * 8 Fun Machine Learning Projects for Beginners * 机器学习概念的可视化解释 * 微软的基础课程 ChatGPT * 面向开发人员的 ChatGPT 提示工程 汇总 * Great Resources for Learning Generative AI and Large Language Models (LLMs)… text/html 2025-01-20T08:45:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:object_tracking?rev=1737362748&do=diff 目标追踪 * Object tracking * 2020年的一个综述：<https://github.com/LeeWise9/Object-Tracking-Overview> * <https://cloud.tencent.com/developer/article/2008418> 卡尔曼滤波 * 卡尔曼滤波的教程（英文） * <https://zhuanlan.zhihu.com/p/39912633> ByteTrack * 多目标跟踪 ByteTrack算法核心原理详解 * github repo * <https://github.com/PaddlePaddle/PaddleDetection/tree/develop/configs/mot/bytetrack> * c++ 实现时使用了 Eigen向量库, Eigen is a C++ template library for linear algebra: matrices, vectors, numerical solvers, and related… text/html 2019-03-30T09:39:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:ocr?rev=1553938745&do=diff OCR * Optical Character Recognition Open sources Tesseract * repo:<https://github.com/tesseract-ocr/tesseract> * online example: <http://ocr.net/> * js ver:<https://github.com/naptha/tesseract.js> apps * ABBYY Finereader 中文官网：<http://www.abbyychina.com> 业绩历史领先 * Google vision: <https://cloud.google.com/vision/docs/oc> * 百度开放平台文字识别:<http://ai.baidu.com/tech/ocr> * 腾讯优图OCR:<https://ai.qq.com/product/ocr.shtml#identify> text/html 2018-02-28T05:48:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:perlin_noise?rev=1519796929&do=diff Perlin Noise * wiki * 中文wiki * 算法发明者Ken Perlin的主页 JAVA REFERENCE IMPLEMENTATION OF IMPROVED NOISE * 在图形学材质上的应用 * 这个介绍不错 * Perlin noise in c++11 相关 * Smoothstep: Smoothstep $$ \operatorname{smoothstep}(t) = 3t^2 - 2t^3 $$ $$ \operatorname{smootherstep}(t) = 6t^5 - 15t^4 + 10t^3 $$ text/html 2025-12-30T08:47:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:programming_languages?rev=1767084454&do=diff Programming languages * Great Works in Programming Languages * 编程语言速度比较：<https://niklas-heer.github.io/speed-comparison/> Others * 图灵完备(Turing complete) Turing completeness * Brainfuck:Brainfuck * <http://fatiherikli.github.io/brainfuck-visualizer/> * Wolfram Language<http://www.wolfram.com/language/fast-introduction-for-programmers/zh/> * Syntax Design 学习笔记 * 《计算机程序的构造与解释》笔记 学习一门新编程语言的一般步骤 * 了解该语言的出生背景与适用环境… text/html 2021-01-06T09:31:37+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:rasterization_on_larrabee?rev=1609925497&do=diff Rasterization on Larrabee <https://software.intel.com/en-us/articles/rasterization-on-larrabee> --- 翻译:　Yongjiu Wei 2015/07/25 05:32 Larrabee 上的光栅化 Rasterization on Larrabee 注: Larrabee 是英特尔公司的通用图形处理器（GPCPU）的开发代号/核心代号, 详见Larrabee By Michael Abrash You don't tug on Superman's cape text/html 2023-04-21T05:22:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:sicp?rev=1682054549&do=diff 《计算机程序的构造与解释》笔记 * SICP：Structure and Interpretation of Computer Programs * 本书使用 Lisp 方言 Scheme 来教学。ubuntu 14.04 可安装 scheme-r5rs包（不知道为何没有 mit-scheme包）, （实际安装的包名为 text/html 2018-02-28T05:48:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:smt?rev=1519796929&do=diff Surface-mount technology * Surface-mount technology(SMT), 表面贴装技术, 是目前电子组装行业里最流行的一种技术和工艺。无需对印制板钻插装孔，直接将表面组装元器件贴、焊⑵到印制板表面规定位置上的装联技术。 text/html 2024-11-01T06:29:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:software_engineering?rev=1730442576&do=diff 软件工程 * Software-Engineering-at-Google 测试 * 单元测试 * 自动测试 * 持续集成 重构 * 一切没有自动化测试的代码重构都是耍流氓。 * 自动化测试 * 提高测试覆盖率 * 重构的时机: 重构代码最佳的时间点：撰写每行代码的时候，而非火烧屁股的时候。 text/html 2025-01-20T08:33:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://joak.org/public:cs:start?rev=1737361996&do=diff Computer Science * Keywords Index * 文章收集 * Actor model * Computer Graphics * 设计模式 * Programming languages * Nature of Code * Perlin Noise * SMT生产过程 * Language * Acoustics 声学 * 软件工程 * Algorithm 算法 * Machine Learning 机器学习 * OCR * 目标追踪 * 信息安全 * Ethereum