decision trees短语⁷⁶³⁷³ 基本例句 决策树 The training part is used to clean the teaching history datas training recordset, disperse the consecutive datas and then form the decision/span> trees and the rules through the decision trees algorithm . 在数据训练部分，首先对教学历史数据训练集进行清洗、连续数据离散化，之后通过挖掘系统生成决策树和形成相应的规则； cnki