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1、WorkerTypesandPersonalityTraitsinCrowdsourcingRelevanceLabelsGabriellaKazaiJaapKampsNatasaMilic-FraylingMicrosoftResearchUniversityofAmsterdamMicrosoftResearchCambridge,UKTheNetherlandsCambridge,UKv-gabkaz@microsoft.comkamps@uva.nlnatasamf@microsoft.comABSTRACT[4,14,19,21],orbyobserving
2、agreementlevelsamongthework-ersandwitha‘goldstandard’setoftrustedlabels[1,6,11,12].Crowdsourcingplatformsofferunprecedentedopportunitiesforcre-Morerecently,increasingattentionisbeingpaidtostudyingchar-atingevaluationbenchmarks,butsufferfromvariedoutputqualityacteristicsoftheworkersthems
3、elvesandhowtheserelatetothefromcrowdworkerswhopossessdifferentlevelsofcompetencequalityoftheirwork.Forexample,[3]experimentwitharangeandaspiration.Thisraisesnewchallengesforqualitycontrolandofhypotheticalassessorarchetypesandexaminetheeffectsofas-requiresanin-depthunderstandingofhowwork
4、ers’characteristicssociatedassessorerrorsontheevaluationofIRsystems.Theyrelatetothequalityoftheirwork.Inthispaper,weusebehavioraldifferentiatebetweenunenthusiastic,optimistic,pessimistic,topic-observations(HITcompletiontime,fractionofusefullabels,labeldisgruntled,lazy,fatiguedand’Markov
5、ian’assessormodelsandaccuracy)todefinefiveworkertypes:Spammer,Sloppy,Incom-usethesemodelstosimulateassessorsgoingthroughtheprocesspetent,Competent,Diligent.UsingdatacollectedfromworkersofmakingjudgmentsintheTRECMillionQuerytracktestcollec-engagedinthecrowdsourcedevaluationoftheINEX2010Boo
6、ktions.Theworkof[20]presentsaclassificationofcrowdwork-TrackProveIttask,werelatetheworkertypestolabelaccuracyers,differentiatingbetweentwotypesofethicalworkers(sloppyandpersonalitytraitinformationalongthe‘BigFive’personalityandproper),andtwotypesofunethicalworkers(randomspam-dimensions.W
7、eexpectthatthesenewinsightsaboutthetypesofmersanduniformspammers).Atotalof850votesobtainedfromcrowdworkersandthequalityoftheirworkwillinformhowto33crowdworkersfor10topicsfromtheTREC2010WebTrackdesignHITstoattractthebestworkerstoataskandexplainwhyad-hoctaskareusedtoconfirmthiscla