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1、ISSN1000-9825,CODENRUXUEWE-mail:jos@iscas.ac.cnJournalofSoftware,Vol.18,No.7,July2007,pp.1730−1737http://www.jos.org.cnDOI:10.1360/jos181730Tel/Fax:+86-10-62562563©2007byJournalofSoftware.Allrightsreserved.∗基于灰色系统理论的信誉报告机制1+1121徐兰芳,胡怀飞,桑子夏，徐凤鸣，邹德清1(华中科技大学计算机学院,湖北武汉430074)2(
2、武汉工业学院工商学院,湖北武汉430070)APrestigeReportingMechanismBasedonGraySystemTheory1+1121XULan-Fang,HUHuai-FeiSANGZi-Xia,XUFeng-Ming,ZOUDe-Qing1(InstituteofComputerScience,HuazhongUniversityofScienceandTechnology,Wuhan430074,China)2(InstituteofBusinessandTechnology,WuhanIndustryUniver
3、sity,Wuhan430070,China)+Correspondingauthor:Phn:+86-27-87891583,E-mail:lfxu@hust.edu.cn,http://www.hust.edu.cnXuLF,HuHF,SangZX,XuFM,ZouDQ.Aprestigereportingmechanismbasedongraysystemtheory.JournalofSoftware,2007,18(7):1730−1737.http://www.jos.org.cn/1000-9825/18/1730.htmAbs
4、tract:Trustisanimportantcausationbetweensellerandcustomerinthesuccessfulnetworkbusiness,andtheprestigeofmerchantisavitalfactorthatcustomerstakeintoaccountwhentheyselectbargainer.Inthetraditionaltrustevaluationmethods,varioushypothesesareputforwardfortheevaluatedentities,and
5、theinveraciousrecommendationofmaliciouscustomerscannotbeavoided,sotheobjectivityandcreditabilityoftheevaluationresultisaffected.Totheabovequestions,amechanismschemebasedonthegraysystemtheoryisputforwardinthispaper.Itisprovedthatinthettime,theexistenceoftheentity’grayrelatio
6、ndegreeissufficientandnecessary.Inthisscheme,originaldataisfirstlycollectedthroughusingtasteconcoursemethod,theevaluatedentitiesareregardedasclusteringentities,andthegradepointvalueoftheirkeyattributesgivenbycustomersareregardedasthebasisofvaluation.Usingagrayrelationanalyt
7、icalmethod,theevaluatedvectorsoftheentitiescanbegotten.Throughinducingandadjustingaccordingtothearrangedgraylevel,grayleveloftheclusteringentityisjudged,andtrustdegreeoftheentitycanbeobtained.Theactualmarkoftheentity’keyattributesgivenbycustomersareregardedasthebasisofvalua
8、tioninthisscheme.Graynumberclosetofactisadoptedastheexpressivemodesothatthevarious
