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• W2289674003 abstract "Le Crowdsourcing represente aujourd'hui une methode de travail tr es populaire qui a une grande importance. Cette methode consiste a recourir aux ressources de la foule pour accomplir des tâches , pour collecter des informations et des connaissances sous forme d'une sous-traitance vers un grand nombre de personnes. La qualite et le niveau d'expertise de ces derniers influencent lar-gement l'efficacite des plates-formes de crowdsourcing. Ceci pose un nouveau defi de controle de qualite des participants et d'identifier les experts. Plusieurs methodes ont ete proposees dans ce contexte, mais lesprobi emes d'imperfection des donnees souvent peu prises en compte influencent tous les resultats observes. Pour ce faire et afin de mieux identifier les experts nous proposons une nouvelle methode de caracterisation des experts fondee sur la theorie des fonctions de croyance. Nous validons nos techniques par des experimentations sur des donnees synthetiques. Mots-cles : Crowdsourcing, Expert, Theorie des fonctions de croyance, Exactitude. Abstract: Crowdsourcing represents a very popular working method which acquires a great importance. This method consists to recourse to the crowd to accomplish tasks, to collect pieces of information and knowledge through outsourcing the tasks to a large number of people. The quality and the level of expertise of participants strongly influence the efficacy of the crowdsourcing platforms. This raises new challenges to control the quality of participants and identifying experts. In this context, several methods have been proposed, but the problem of imperfection data is often not taken into account and this might largely influence all the observed results. We propose novel methods for identifying the experts, based on the theory of belief functions. We validate our techniques through experimentation on synthetic datasets." @default.
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• W2289674003 date "2015-11-05" @default.
• W2289674003 modified "2023-10-16" @default.
• W2289674003 title "Caractérisation d'experts dans les plate-formes de crowdsourcing Characterization of experts in crowdsourcing platforms" @default.
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