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1、LinkAnalysisRanking:Algorithms,Theory,andExperimentsALLANBORODINUniversityofTorontoGARETHO.ROBERTSLancasterUniversityJEFFREYS.ROSENTHALUniversityofTorontoandPANAYIOTISTSAPARASUniversityofHelsinkiTheexplosivegrowthandthewidespreadaccessibilityoftheWebhasledtoasurgeo
2、fresearchac-tivityintheareaofinformationretrievalontheWorldWideWeb.TheseminalpapersofKleinberg[1998,1999]andBrinandPage[1998]introducedLinkAnalysisRanking,wherehyperlinkstruc-turesareusedtodeterminetherelativeauthorityofaWebpageandproduceimprovedalgorithmsfortheran
3、kingofWebsearchresults.Inthisarticleweworkwithinthehubsandauthoritiesframe-workdefinedbyKleinbergandweproposenewfamiliesofalgorithms.TwoofthealgorithmsweproposeuseaBayesianapproach,asopposedtotheusualalgebraicandgraphtheoreticapproaches.Wealsointroduceatheoreticalfr
4、ameworkforthestudyofLinkAnalysisRankingalgorithms.TheframeworkallowsforthedefinitionofspecificpropertiesofLinkAnalysisRankingalgorithms,aswellasforcomparingdifferentalgorithms.Westudythepropertiesofthealgorithmsthatwede-fine,andweprovideanaxiomaticcharacterizationofth
5、eINDEGREEheuristicwhichrankseachnodeaccordingtothenumberofincominglinks.Weconcludethearticlewithanextensiveexperimentalevaluation.Westudythequalityofthealgorithms,andweexaminehowdifferentstructuresinthegraphsaffecttheirperformance.CategoriesandSubjectDescriptors:H.
6、3.3[InformationStorageandRetrieval]:InformationSearchandRetrieval—SearchprocessGeneralTerms:Algorithms,TheoryAdditionalKeyWordsandPhrases:Bayesian,HITS,linkanalysis,ranking,WebsearchAuthors’addresses:A.Borodin,J.S.Rosenthal,UniversityofToronto,Toronto,Canada;email:
7、bor@cs.toronto.edu;G.O.Roberts,LancasterUniversity;P.Tsaparas,UniversityofHelsinki,Helsinki,Finland;email:tsaparas@cs.helsinki.fi.Permissiontomakedigitalorhardcopiesofpartorallofthisworkforpersonalorclassroomuseisgrantedwithoutfeeprovidedthatcopiesarenotmadeordistri
8、butedforprofitordirectcommercialadvantageandthatcopiesshowthisnoticeonthefirstpageorinitialscreenofadisplayalongwiththefullcitation.Copyrightsforco
