PartitionBlock Method of Feature Selection from Information System
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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,而且具有快速和有效的特点.Abstract: 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.
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Key words:
- information systems /
- feature selection /
- heuristic approach
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