码迷,mamicode.com
首页 > 系统相关 > 详细

Machine Learning - XV. Anomaly Detection异常检测(Week 9)

时间:2015-03-31 20:09:18      阅读:204      评论:0      收藏:0      [点我收藏+]

标签:机器学习   machine learning   andrew   ng   异常检测   

http://blog.csdn.net/pipisorry/article/details/44783647

机器学习Machine Learning - Andrew NG courses学习笔记

Anomaly Detection异常检测

Problem Motivation问题的动机

Anomaly detection example

技术分享

Applycation of anomaly detection

技术分享

Note:for Frauddetection: users behavior examples of features of a users activity may be on the website it‘d be things like,maybe x1 is how often does this user log in, x2,the number of what pages visited, or the number of transactions, maybe x3 is the number of posts of the users on the forum, feature x4 could be the typing speed of the user.And so you can model p of x based on this sort of data.


Gaussian Distribution高斯分布


Algorithm算法


Developing and Evaluating an Anomaly Detection System开发和评价异常检测系统


Anomaly Detection vs. Supervised Learning异常检测vs.监督学习


Choosing What Features to Use选择使用哪些features


Multivariate Gaussian Distribution (Optional)多变量的高斯分布


Anomaly Detection using the Multivariate Gaussian Distribution (Optional)用多变量的高斯分布进行异常检测


from:http://blog.csdn.net/pipisorry/article/details/44783647


Machine Learning - XV. Anomaly Detection异常检测(Week 9)

标签:机器学习   machine learning   andrew   ng   异常检测   

原文地址:http://blog.csdn.net/pipisorry/article/details/44783647

(0)
(0)
   
举报
评论 一句话评论(0
登录后才能评论!
© 2014 mamicode.com 版权所有  联系我们:gaon5@hotmail.com
迷上了代码!