摘要
利用差异矩阵和最小差异表 ,结合与或树技术 ,提出了一种特征选取的方法IBFS .该方法采用指定标示后分解信息系统为标示块 (IB) ,再根据各个标示块最终求解信息系统的一个较优特征选取 .它不仅具有确定性 。
After utilizing the technique of the combination of And/Or Tree with Different Matrix(DM) and Minimum Different List(MDL), this paper presents a method called IBFS to compute a better feature selection from larger Information System(IS).IBFS mainly partitions larger IS into small ones(called identification block, IB) by the identification feature or features, and then computes the feature selections from IBs, finally forming a feature selection for IS. It has the advantage of high efficiency and determinacy.
出处
《北京航空航天大学学报》
EI
CAS
CSCD
北大核心
2003年第3期255-259,共5页
Journal of Beijing University of Aeronautics and Astronautics
关键词
信息系统
特征选择
启发式算法
information systems
feature selection
heuristic approach
