西南师范大学学报(自然科学版)
西南師範大學學報(自然科學版)
서남사범대학학보(자연과학판)
JOURNAL OF SOUTHWEST CHINA NORMAL UNIVERSITY
2014年
3期
60-64
,共5页
互信息%布尔矩阵%相对约简%粗糙集%粒度计算
互信息%佈爾矩陣%相對約簡%粗糙集%粒度計算
호신식%포이구진%상대약간%조조집%립도계산
mutual information%Boolean matrix%relative reduction%rough sets%granular computing
提出了一种基于互信息粒度的相对约简模型,该模型利用互信息度量决策系统中的条件属性,将互信息对属性的度量映射到布尔矩阵,并能得到完备的相对约简结果;同时给出了基于布尔矩阵属性重要度的度量方法,在此基础上,设计了一种相对约简启发式计算方法,最后通过实验验证了方法的有效性。
提齣瞭一種基于互信息粒度的相對約簡模型,該模型利用互信息度量決策繫統中的條件屬性,將互信息對屬性的度量映射到佈爾矩陣,併能得到完備的相對約簡結果;同時給齣瞭基于佈爾矩陣屬性重要度的度量方法,在此基礎上,設計瞭一種相對約簡啟髮式計算方法,最後通過實驗驗證瞭方法的有效性。
제출료일충기우호신식립도적상대약간모형,해모형이용호신식도량결책계통중적조건속성,장호신식대속성적도량영사도포이구진,병능득도완비적상대약간결과;동시급출료기우포이구진속성중요도적도량방법,재차기출상,설계료일충상대약간계발식계산방법,최후통과실험험증료방법적유효성。
Mutual information is one of the important technology in intelligent information processing,and the mutual information is often used for the measurement of attribute in rough sets.In this paper,the rel-ative reduction model based on mutual information granularity has been presented,the proposed model been used to evaluate the condition attributes in decision system,and the mutual information of attribute measure been mapped to Boolean matrix,which guarantees the completeness of the reduction result. What’s more,the measurement method of attribute significance based on Boolean matrix has been given. On this basis,a computing approach to relative reduction has been designed.Finally,the experimental re-sults are verified to the validity of the method.