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单边三角形模糊数属性决策树学习算法
On the Handing of One-side-Triangle-Fuzzy-Number-Valued Attributes in Decision Tree Generation
【摘要】 通过定义单边三角形模糊数空间上的一种全序关系,提出了属性取值为单边三角形模糊数的决策树学习算法.作为ID3算法在单边三角形模糊数意义下的推广,算法通过一种分割信息熵的极小化来选取扩展属性.通过非平稳割点的分析,减少了分割信息的计算次数,使算法的效率得到了提高.
【Abstract】 The paper defines a total order on one-side triangular fuzzy numbers,then presents rules of learning algorithm,that is,one-side decision trees or rules using the information entropy minimization heuristic.The result serves to give a better understanding of the entropy measure,to point out that the behavior of the information entropy heuristic is desirable,and to improve the efficiency of evaluating attributes,for cutting value selection.
【关键词】 机器学习;
归纳学习;
单边三角形模糊数;
决策树;
类信息熵极小;
【Key words】 Machine learning; Induction learning; One-side-Triangle-Fuzzy-Number; Decision tree; information entropy minimization;
【Key words】 Machine learning; Induction learning; One-side-Triangle-Fuzzy-Number; Decision tree; information entropy minimization;
- 【文献出处】 南华大学学报(自然科学版) ,Journal of University of South China(Science and Technology) , 编辑部邮箱 ,2007年03期
- 【分类号】O159
- 【下载频次】65