计算机工程与设计
計算機工程與設計
계산궤공정여설계
COMPUTER ENGINEERING AND DESIGN
2015年
4期
1110-1114
,共5页
李晓%石国良%苟先太%金炜东
李曉%石國良%茍先太%金煒東
리효%석국량%구선태%금위동
特征选择%排序融合%Fisher比率%ReliefF%马氏距离%模式分类
特徵選擇%排序融閤%Fisher比率%ReliefF%馬氏距離%模式分類
특정선택%배서융합%Fisher비솔%ReliefF%마씨거리%모식분류
fature selection%rank fusion%Fisher ratio%ReliefF%Mahalanobis distance%pattern classification
针对模式分类中特征选择问题,为去除冗余特征,提高分类准确率,提出一种基于 ReliefF 算法、Fisher 比率算法和马氏距离算法的多准则排序融合的特征选择方法。动态结合上述3种单准则特征选择法的优点,实现对多个评价准则的综合利用。以 Ionosphere 标准数据集和高速列车转向架故障数据集为研究对象进行实验仿真,仿真结果表明,相比于单准则特征选择法,该方法能更有效地降低特征维数,具有更高的分类性能。
針對模式分類中特徵選擇問題,為去除冗餘特徵,提高分類準確率,提齣一種基于 ReliefF 算法、Fisher 比率算法和馬氏距離算法的多準則排序融閤的特徵選擇方法。動態結閤上述3種單準則特徵選擇法的優點,實現對多箇評價準則的綜閤利用。以 Ionosphere 標準數據集和高速列車轉嚮架故障數據集為研究對象進行實驗倣真,倣真結果錶明,相比于單準則特徵選擇法,該方法能更有效地降低特徵維數,具有更高的分類性能。
침대모식분류중특정선택문제,위거제용여특정,제고분류준학솔,제출일충기우 ReliefF 산법、Fisher 비솔산법화마씨거리산법적다준칙배서융합적특정선택방법。동태결합상술3충단준칙특정선택법적우점,실현대다개평개준칙적종합이용。이 Ionosphere 표준수거집화고속열차전향가고장수거집위연구대상진행실험방진,방진결과표명,상비우단준칙특정선택법,해방법능경유효지강저특정유수,구유경고적분류성능。
For the problem of feature selection in pattern classification,to remove redundant features and improve the classifica-tion accuracy,a multi-criterion feature ranking scheme was proposed.The proposed scheme was based on the fusion of a collec-tion of methods including ReliefF,Fisher ratio and Mahalanobis distance,the advantages of the three different evaluation criteria were combined,therefore the comprehensive utilization of the three criteria was realized.The four methods were simulated based on Ionosphere standard test and fault data of high-speed train,the experimental results show that,compared to the single criteria feature selection method,the proposed approach can effectively reduce feature dimension,and owns better classification perfor-mance.