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有向无环图的多类支持向量机分类算法
引用本文:王艳,陈欢欢,沈毅. 有向无环图的多类支持向量机分类算法[J]. 电机与控制学报, 2011, 15(4): 85-89
作者姓名:王艳  陈欢欢  沈毅
作者单位:哈尔滨工业大学航天学院;
基金项目:国家自然科学基金(61071182,60874054); 高等学校博士学科点专项科研基金(20092302110037)
摘    要:
为研究基于有向无环图的支持向量机分类算法以及在故障诊断问题中的应用,考虑到有向无环图的结构运算相当于一个表操作,且分类结果依赖于有向无环图中节点的排列顺序,提出一种分类算法,该算法引入基于类分布的类间分离性测度,估计各类训练数据间的分布性质,建立初始操作表单,将样本所有可能的类别按照一定顺序排列在表单中,从而重新组合有...

关 键 词:支持向量机  有向无环图  分离性测度  故障诊断

Multi-class support vector machine based on directed acyclic graph
WANG Yan,CHEN Huan-huan,SHEN Yi. Multi-class support vector machine based on directed acyclic graph[J]. Electric Machines and Control, 2011, 15(4): 85-89
Authors:WANG Yan  CHEN Huan-huan  SHEN Yi
Affiliation:WANG Yan,CHEN Huan-huan,SHEN Yi (School of Astronautics,Harbin Institute of Technology,Harbin 150001,China)
Abstract:
Support vector machine based on directed acyclic graph(DAG) was proposed for multi-class classification and applied to multi-class fault diagnosis problems.Considering DAG being equivalent to a list operation,and the classification performance depending on the nodes' sequence in the graph,a classification measure based on the distribution of multi-class data was introduced.This method used separability measure between class to estimate distribution character of each class,established the initialization oper...
Keywords:support vector machine  directed acyclic graph  separability measure  fault diagnosis  
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