A_Survey_of_Explanations_in_Recommender_Systems.pdf

A_Survey_of_Explanations_in_Recommender_Systems.pdf

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时间:2019-03-07

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1、ASurveyofExplanationsinRecommenderSystemsNavaTintarev,JudithMasthoffUniversityofAberdeen,Scotland,U.K.ntintare,jmasthoff@csd.abdn.ac.ukAbstract2Whyexplanationsarethebestthingsinceslicedbread...Thispaperprovidesacomprehensivereviewofexplana-tionsinrecommendersyste

2、ms.Wehighlightsevenpossibleadvantagesofanexplanationfacility,anddescribehowex-istingmeasurescanbeusedtoevaluatethequalityofex-Table1.AimsAimDefinitionplanations.Sinceexplanationsarenotindependentoftherecommendationprocess,weconsiderhowthewaysrecom-Transparency(Tra

3、.)Explainhowthesystemworksmendationsarepresentedmayaffectexplanations.Next,weScrutability(Scr.)Allowuserstotellthesystemitlookatdifferentwaysofinteractingwithexplanations.Theiswrongpaperisillustratedwithexamplesofexplanationsthrough-TrustIncreaseusers’confidencein

4、out,wherepossiblefromexistingapplications.thesystemEffectiveness(Efk.)HelpusersmakegooddecisionsPersuasivenessConvinceuserstotryorbuy1Introduction(Pers.)Efficiency(Efc.)HelpusersmakedecisionsfasterThehistoryofexplanationsinintelligentsystemsbeganSatisfaction(Sat.)

5、Increasetheeaseofusabilityorwithexpertsystemswhichwerepredominantlybasedonenjoymentheuristics[7],butalsooncase-basedreasoning(CBR)[12],andmodelbasedapproaches[13].Inrecentyearstheirmorecommercialorentertainmentinclinedsuccessors-Amongotherthings,goodexplanationsc

6、ouldhelpin-recommendersystems-havebeguntoofferexplanationsasspireusertrustandloyalty,increasesatisfaction,makeitwell[5,18,24].Thesesystemsrepresentuserpreferencesquickerandeasierforuserstofindwhattheywant,andper-forthepurposeofsuggestingitemstopurchaseorexamine,su

7、adethemtotryorpurchasearecommendeditem.Table1i.e.recommendations.definessevenpossibleaimsofexplanationfacilitiesinrec-Intherecommendersystemscommunityitisincreas-ommendersystems.Someoftheseaimsaresimilartotheinglyrecognizedthataccuracymetricssuchasmeanreasonsforex

8、plainingreasoninginexpertsystems,c.f.[7].averageerror(MAE),precisionandrecall,canonlyInTable2wesummarizewhichoftheseaimsanumberpartiallyevaluatearecommendersys

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