摘要
Inthispaperweaddressinformationmeasuresofroughnessofknowledgeandroughsetsforincompleteinformationsystems.Thedefinitionofroughentropyofknowledgeanditsimportantpropertiesaregiven.Inparticular,therelationshipbetweenroughentropyofknowledgeandtheHartleymeasureofuncertaintyisestablished.Weshowthatroughentropyofknowledgedecreasesmonotonouslyasgranularityofinformationbecomesmaller.Thisgivesaninformationinterpretationforroughnessofknowledge.Basedonroughentropyofknowledgeandroughnessofroughset.adefinitionofroughentropyofroughsetisproposed,andweshowthatroughentropyofroughsetdecreasesmonotonouslyasgranularityofinformationbecomesmaller.Thisgivesmoreaccuratemeasureforroughnessofroughset.
出版日期
2001年04月14日（中国期刊网平台首次上网日期，不代表论文的发表时间）
