摘要
针对信息系统约简的问题,根据信息熵和可辨识矩阵的特点,给出了一种组合约简算法,该算法既能提高约简的准确度又能有效的降低约简的时间复杂度。
A combination reduction algorithm based on characteristics of information entropy and discernibility matrix is studied in this paper. The algorithm not only can improve accurate degree but also can decrease complex degree of knowledge reduction.
出处
《四川教育学院学报》
2008年第3期107-108,共2页
Journal of Sichuan College of Education
关键词
信息熵
可辨识矩阵
属性核
约简
information entropy
discernibility matrix
core attribute
knowledge reduction