海量数据挖掘MMDS week5: 聚类clustering
2015-10-26 18:33
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http://blog.csdn.net/pipisorry/article/details/49427989
海量数据挖掘Mining Massive Datasets(MMDs) -Jure Leskovec courses学习笔记 推荐系统Recommendation System之隐语义模型latent semantic analysis
{博客内容:Clustering. The problem is to take large numbers of points and group them into a small number of groups so that points are much closer to other points in their group than to points in other groups. This subject, although it has a long history, is sometimes referred to by the retronym "unsupervised learning," because you "learn" something about the data without needed a training set.}
聚类实例
聚类方法
Note: A topic is just a set of words that appear together frequently.皮皮blog
层次聚类Hierarchical Clustering
这里只讲凝聚即自底向上的层次聚类方法。主要思想及问题
欧式空间Euclidean的点和距离表示
层次聚类示例1
合并距离最近的两点
合并距离最近的新点
from:http://blog.csdn.net/pipisorry/article/details/49427989ref: [聚类算法]
海量数据挖掘Mining Massive Datasets(MMDs) -Jure Leskovec courses学习笔记 推荐系统Recommendation System之隐语义模型latent semantic analysis
{博客内容:Clustering. The problem is to take large numbers of points and group them into a small number of groups so that points are much closer to other points in their group than to points in other groups. This subject, although it has a long history, is sometimes referred to by the retronym "unsupervised learning," because you "learn" something about the data without needed a training set.}
聚类综述Overview
问题形式化描述
聚类难点
聚类实例
距离度量方法的选择
聚类方法
Note: A topic is just a set of words that appear together frequently.皮皮blog
层次聚类Hierarchical Clustering
这里只讲凝聚即自底向上的层次聚类方法。主要思想及问题
欧式空间Euclidean的点和距离表示
层次聚类示例1
合并距离最近的两点合并距离最近的新点
非欧式空间Non-Euclidean的点和距离表示
皮皮blogfrom:http://blog.csdn.net/pipisorry/article/details/49427989ref: [聚类算法]
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