摘要： I Possion,Gaussion,Exponential distribution II Ex,Ex^2,Dx prove $-Possion\ distribution:$ $X~\pi(\lambda)$ $E(x)=\sum_{k=0}^{n}k\frac{\lambda^{k}e^{-\ 阅读全文

摘要： I Chebyshev inquation $E(X)=\mu,D(X)=\sigma^{2}$ $P\{|X-\mu|>=\varepsilon\}<=\frac{\sigma^{2}}{\varepsilon^{2}}\\ it's\ equation:\\ P\{|X-\mu|<\vareps 阅读全文

摘要： I Base class of sort al Insert Swap Select II compare diff al[考点I] 名称 时间复杂度 空间复杂度 适用结构 优点 缺点 备注 直接插入 O(n)~O(n^2) O(1) 基本有序线性表 稳定 [1] 折半插入 O(n)~O(n^2) 阅读全文

摘要： 1 Pretreatment 缺失&异常 散点图 2 Anlaysis 2.1 Normal test 2.2.1 描述性统计/图示 直方/Quantile-quantile plot 2.2.2 code gg <- ggplot(data = smp, mapping = aes(sample 阅读全文

摘要： 1 Introduction usual class in decision tree:ID3,C4.5,CART ID3:/Informattion Entropy,基于信息熵和信息增益 C4.5:/信息增益率,base on the ID3 CART:/基尼系数,using regress or 阅读全文

摘要： 1 Introduction 2 Application Quadratic Assignment Problems Capital Budgeting Problems Multiple Knapsack Problems Task Allocation Problems (distributed 阅读全文