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Université de Fribourg

OpenCrowd : A Human-AI Collaborative Approach for Finding Social Influencers via Open-Ended Answers Aggregation

Arous, Ines ; Yang, Jie ; Khayati, Mourad ; Cudré-Mauroux, Philippe

In: WWW '20: Proceedings of The Web Conference 2020, 2020, vol. April, p. 1851-1862

Finding social influencers is a fundamental task in many online applications ranging from brand marketing to opinion mining. Existing methods heavily rely on the availability of expert labels, whose collection is usually a laborious process even for domain experts. Using open-ended questions, crowdsourcing provides a cost-effective way to find a large number of social influencers in a short...

Université de Fribourg

How do crowdworker communities and microtask markets influenceeach other? a data-driven study on amazon mechanical turk

Yang, Jie ; van der Valk, Carlo ; Hossfeld, Tobias ; Redi, Judith ; Bozzon, Alessandro

In: AAAI Conference on Human Computation and Crowdsourcing (HCOMP), 2018

Crowdworker online communities -- operating in fora like mTurkForum and TurkerNation -- are an important actor in microwork markets. Albeit central to market dynamics, how the behavior of crowdworker communities and the dynamics of online marketplaces influence each other is yet to be understood. To provide quantitative evidence of such influence, we performed an analysis on 6-years worth of...