李先森的博客 | Chiellini Blog

Fibonacci Spiral Sphere

How to generate a series of points on sphere evenly

Problem How to generate a series of points on sphere evenly? It is not easy as you think. Average distance on xyz or $r\phi\theta$ cannot generate the point on a 2D circle or 3D sphere....

Posted by zelin on October 6, 2020

My undergraduate thesises

Senior Thesises of Double Bachelor's Degree

智慧医疗场景下区块链的架构设计 EE Senior Thesis, 电信毕业论文: https://chiellini.github.io/PDF_FILE/electronic_senior_thesis.pdf 中国商业银行绩效与其量化后金融科技指数的关系 Finance Senior Thesis, 金融学毕业论文: https://chiellini.github.i...

Posted by chiellini on May 19, 2020

常用statistical learning concept and methods

PRINCIPAL COMPONENT ANALYSIS

Statistical Learning Concept mean 数学期望（均值）以下三者的区别：https://www.cnblogs.com/bigmonkey/p/11097322.html variance 方差 https://en.wikipedia.org/wiki/Variance root-mean-squa...

Posted by zelin on January 2, 2020

Survey of pattern search

Some algorithms for pattern searching

Some traditional algorithms and innovative methods for pattern searching 1 2 3 4 5 6 7 8 9 10 11 Input: txt[] = "THIS IS A TEST TEXT" pat[] = "TEST" Output: Pattern found at index 10 Inp...

Posted by chiellini(lizelin) on November 30, 2019

Implement of DPOS & PBFT Consensus Algorithm

DPOS技术基础

RAW DPOS CONSENSUS ALGORITHM 区块链中的共识算法核心就是解决三个问题谁来产生block 何时产生block 如何验证block的合法性 DPOS的做法：由当前的排名靠前的委托人列表和当前的时间偏移共同决定。按照固定的时间间隔定期产生。通过block（区块）的时间戳确定合法锻造者，而在PBFT中也说明了通过DIGITAL...

Posted by chiellini on July 1, 2019

PBFT Consensus Algorithm

pbft 容错算法基础

PBFT共识算法实用的拜占庭容错算法 BFT 是区块链共识算法中，需要解决的一个核心问题。比特币的POW，eos的dpos，以及共识算法pos，这些公链算法，解决的是共识节点众多情况下的bft问题。 bft问题拜占庭将军问题。也称为拜占庭容错。用来描述分布式系统一致性问题。背景如下：拜占庭帝国想要进攻一个强大的敌人，为此派出了10支军队去包围这个敌人。这个敌人虽不比拜占庭帝国，...

Posted by chiellini on June 20, 2019

GOLANG 编程基础

golang programming base

go 的基本情况用途 Go 语言被设计成一门应用于搭载 Web 服务器，存储集群或类似用途的巨型中央服务器的系统编程语言。对于高性能分布式系统领域而言，Go 语言无疑比大多数其它语言有着更高的开发效率。它提供了海量并行的支持，这对于游戏服务端的开发而言是再好不过了。语言结构 package main 定义包名，必须在源文件中非注释的第一行指明这个文件属于哪一个...

Posted by lizelin on May 7, 2019

Git 基础

useful git basic theory which can help you version control in terminal

Git 基础 1. Git 简史同生活中的许多伟大事物一样，Git 诞生于一个极富纷争大举创新的年代。 Linux 内核开源项目有着为数众广的参与者。绝大多数的 Linux 内核维护工作都花在了提交补丁和保存归档的繁琐事务上（1991－2002年间）。到 2002 年，整个项目组开始启用一个专有的分布式版本控制系统 BitKeeper 来管理和维护代码。到了 2005 年，开发 ...

Posted by lizelin on April 20, 2019

Shell 编程基础

useful shell script in linux and unix system

shell脚本笔记常用命令 echo “string ___” 语法变量如下变量是正确的 1 2 3 4 RUNOOB LD_LIBRARY_PATH _var var2 用语句给变量赋值 1 2 3 for file in `ls /etc` #或 for file in $(ls /etc) 使用变量和设置只读变量 1 2 3 4 5 echo ${you...

Posted by lizelin on March 20, 2019

Hello My Friends - 2018

"Hello World, Hello Blog"

“Yeah It’s on. ” It is my pleasure to let you visit my personal homepage. I am a ambitious and motivate person. I mean that I can influence the world one day. No matter by researching or earni...

Posted by chiellini on January 29, 2018

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