分类：基本概念、决策树与模型评估(12)

信息资源管理

决策树分类任务Tid 1 2 3 4 5 6 7 8 9 1010

Attrib1 Yes No No Yes No No Yes No No No

Attrib2 Large Medium Small Medium Large Medium Large Small Medium Small

Attrib3 125K 100K 70K 120K 95K 60K 220K 85K 75K 90K

Class No No No No Yes No No Yes No Yes

Tree Induction algorithm InductionLearn ModelModel

Training SetApply Model

Tid 11 12 13 14 1510

Attrib1 No Yes Yes No No

Attrib2 Small Medium Large Small Large

Attrib3 55K 80K 110K 95K 67K

Class ? ? ? ? ?

Decision Tree

Deduction

Test Set

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