什么是Weka?
Waikato Environment for Knowledge Analysis（怀卡托智能分析环境）取单词首字母简称Weka
It’s a data mining/machine learning tool developed by Department of Computer Science, University of Waikato, New Zealand.
Weka is also a bird found only on the islands of New Zealand.
下载网址
http://www.cs.waikato.ac.nz/~ml/weka/index.html
Support multiple platforms (written in java):
Windows, Mac OS X and Linux
Main Features：
49 data preprocessing tools
76 classification/regression algorithms
8 clustering algorithms
3 algorithms for finding association rules
15 attribute/subset evaluators + 10 search algorithms for feature selection
Main GUI：
Four graphical user interfaces
“The Explorer” (exploratory data analysis)
“The Experimenter” (experimental environment)
“The KnowledgeFlow” (new process model inspired interface)
Simple CLI 命令行界面（Command Line Interface for batch scripting）