基于相似度的软件可信性评估方法.pdf

第42卷 第6期 山东大学学报(工学版) JOURNAL OF SHANDONG UNIVERSITY(ENGINEERING SCIENCE) 2012年12月 文章编号:1672-3961【2012)06-0013-06 DOI:.1672- 基于相似度的软件可信性评估方法仲晓敏(淮海工学院计算机工程学院,江苏连云港222005) 摘要:为了提高软件可信评估的精确性,提出利用关联可信属性之间相似度的计算结果评估软件的可信性。首先建立可信证据模型、可信属性的数据结构和可信期望模型,便于数据的统一定制和下一步处理。然后对分定性可信属性、定量可信属性进行相似度的计算;根据各自的特点,ard系数求解,定量属性则利用了相似度理论进行计算。最后,将该方法应用于实例进行验证,结果验证了它的有效性和稳定性。关键词:软件可信性评估;可信证据;可信需求模型;相似度;ard系数中图分类号:TP31l 文献标志码:A Method forsoftware trustworthiness evaluation based on similarity ZHONG Xiao—min (School puter Engineering,Huaihai Institute ofTechnology,Lianyungang 222005,China) Abstract:In order toimprove the accuracy ofsoftware trustworthiness evaluation,a creditability evaluation model based on similarity calculati013 between associated trusted attributewas semantic similarit),of corre— sponding qualitative trusted attribute values in thetwo differentsemantic tables were calculated by ard thequantitative trustedattribute’Ssimilarity,Similar threshold values were ording tOthestandard value on the spective timepoints toavoid singular values,when trustedattributevalues were ,the main cause ofthe similarity between the credible evidence model and credible expectations model and dynamics were metllod WaS implemented tO evaluate thesoftware,and theresultsshowed theeffectiveness andstabili