WEKA 数据分析实验_baidu.doc

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1、WEKA数据分析实验1.实验简介借助工具Weka3.6，对数据样本进行测试，分类测试方法包括：朴素贝叶斯、决策树、随机数三类，聚类测试方法包括：DBScan，K均值两种；2.数据样本以熟悉数据分类的各类常用算法，以及了解Weka的使用方法为目的，本次试验中，采用的数据样本是Weka软件自带的“Vote”样本，如图：3.关联规则分析1)操作步骤：a)点击“Explorer”按钮，弹出“WekaExplorer”控制界面b)选择“Associate”选项卡；c)点击“Choose”按钮，选择“Apriori”规则d)点击参数文本框框，在参数选项卡设置

2、参数如：a)点击左侧“Start”按钮2)执行结果：===Runinformation===Scheme:weka.associations.Apriori-I-N10-T0-C0.9-D0.05-U1.0-M0.5-S-1.0-c-1Relation:voteInstances:435Attributes:17handicapped-infantswater-project-cost-sharingadoption-of-the-budget-resolutionphysician-fee-freezeel-salvador-aidreligi

3、ous-groups-in-schoolsanti-satellite-test-banaid-to-nicaraguan-contrasmx-missileimmigrationsynfuels-corporation-cutbackeducation-spendingsuperfund-right-to-suecrimeduty-free-exportsexport-administration-act-south-africaClass===Associatormodel(fulltrainingset)===Apriori=======M

4、inimumsupport:0.5(218instances)Minimummetric:0.9Numberofcyclesperformed:10Generatedsetsoflargeitemsets:SizeofsetoflargeitemsetsL(1):12LargeItemsetsL(1):handicapped-infants=n236adoption-of-the-budget-resolution=y253physician-fee-freeze=n247religious-groups-in-schoo

5、ls=y272anti-satellite-test-ban=y239aid-to-nicaraguan-contras=y242synfuels-corporation-cutback=n264education-spending=n233crime=y248duty-free-exports=n233export-administration-act-south-africa=y269Class=democrat267SizeofsetoflargeitemsetsL(2):4LargeItemsetsL(2):adoption-of-the

6、-budget-resolution=yphysician-fee-freeze=n219adoption-of-the-budget-resolution=yClass=democrat231physician-fee-freeze=nClass=democrat245aid-to-nicaraguan-contras=yClass=democrat218SizeofsetoflargeitemsetsL(3):1LargeItemsetsL(3):adoption-of-the-budget-resolution=yphysician-fee

7、-freeze=nClass=democrat219Bestrulesfound:1.adoption-of-the-budget-resolution=yphysician-fee-freeze=n219==>Class=democrat219conf:(1)2.physician-fee-freeze=n247==>Class=democrat245conf:(0.99)3.adoption-of-the-budget-resolution=yClass=democrat231==>physician-fee-freeze=n219conf:

8、(0.95)4.Class=democrat267==>physician-fee-freeze=n245conf:(0.92)5.ad