Generally, model can be expressed by classification rule, decision tree and mathematical formula.

通常，模型可以用分类规则、判定树或数学公式表示。

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Absrtact: The decision tree is a usual method of classification in data mining.

摘要：决策树是数据挖掘任务中分类的常用方法。

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Absrtact: The decision tree is a usual method of classification in data mining.

摘要：决策树是数据挖掘任务中分类的常用方法。

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