ltlk4

1基于MapReduce的K-Means聚类算法， 2基于MapReduce的分类算法 3MapReduce的频繁项集挖掘算法(1 K-Means clustering algorithm based on MapReduce, 2 classification algorithm based on MapReduce 3 Mining Algorithm for frequent itemsets based on MapReduce)

判断链表中是否有循环 有的话,按序打印一次(To determine if there is a loop in the list, print it in sequence)

GWR能够实现地理加权回归计算，里面有GWR4操作说明，虽然是英文，但有图片介绍，很容易理解，是GWR模型入门的好工具，适合经济学、数据挖掘等人员使用(GWR can realize geographically weighted regression calculation, including GWR4 operation instructions. Although it is in English, it has pictures to introduce, and is easy to understand. It is a good tool for GWR model entry. It is suitable for personnel such as economics and data mining.)

PCA 数据降维 PTYTHON 数据分析/挖掘(PCA dimensionality reduction data mining/analysis)

徐士良《C常用算法程序集》第2版 第2部分()

《从零开始学爬虫》的配套资料（PPT和源码）("Learning Reptiles from Zero" (PPT and Source))

资源描述决策树是建立在信息论基础之上，对数据进行分类挖掘的一种方法。其思想是，通过一批已知的训练数据建立一棵决策树，然后利用建好的决策树，对数据进行预测。决策树的建立过程可以看成是数据规则的生成过程。由于基于决策树的分类方法结构简单，本身就是人们能够理解的规则。其次，决策树方法计算复杂度不大，分类效率高，能够处理大数据量的训练集；最后，决策树方法的分类精度较高，对噪声数据有较好的健壮性，符合一般系统的要求。

复杂网络聚类系数的matlab编程代码,将复杂网络存储为矩阵,再对其matLab编程,可得到度分布图(The MATLAB programming code of clustering coefficient of complex network is used to store complex network as matrix, and then matLab programming is used to get the degree distribution graph.)

主要利用Python软件，利用KNN算法对垃圾邮件进行分类(This paper mainly uses Python software to classify spam mail by using KNN algorithm)

数据挖掘在经侦项目中的应用,本文用到python中的社区划分算法(In the application of data mining in economic investigation projects, this paper uses community partition algorithm in Python.)