Best Paper Award
De paper “Clarity is a Worthwhile Quality: On the Role of Task Clarity in Microtask Crowdsourcing”  heeft de Douglas Engelbart Best Paper Award op de 28ste ACM Conference over Hypertext and Social Media (Hypertext 2017)  gewonnen in Praag, Tsjechië.
Lees verder in het Engels
The paper is co-authored by Jie Yang (PhD student in the Web Information Systems group), Alessandro Bozzon (his supervisor), and Ujwal Gadiraju (a PhD from the Leibniz University Hannover, and former WIS MsC student).
In this work, we highlight the role of clarity as a characterising property of tasks in crowdsourcing. We show that clarity is a problem for crowd workers, that it is coherently perceived by them, and that it is affected by the type of the task. We then propose a set of features to capture task clarity, and use the acquired labels to train and validate a supervised machine learning model for task clarity prediction. Finally, we perform a long-term analysis of the evolution of task clarity on Amazon Turk, and show that clarity is not a property suitable for temporal characterisation.