2014 | OriginalPaper | Buchkapitel
Sparrows and Owls: Characterisation of Expert Behaviour in StackOverflow
verfasst von : Jie Yang, Ke Tao, Alessandro Bozzon, Geert-Jan Houben
Erschienen in: User Modeling, Adaptation, and Personalization
Verlag: Springer International Publishing
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Question Answering platforms are becoming an important repository of crowd-generated knowledge. In these systems a relatively small subset of users is responsible for the majority of the contributions, and ultimately, for the success of the Q/A system itself. However, due to built-in incentivization mechanisms, standard expert identification methods often misclassify very active users for knowledgable ones, and misjudge activeness for expertise. This paper contributes a novel metric for expert identification, which provides a better characterisation of users’ expertise by focusing on the quality of their contributions. We identify two classes of relevant users, namely
sparrows
and
owls
, and we describe several behavioural properties in the context of the
StackOverflow
Q/A system. Our results contribute new insights to the study of expert behaviour in Q/A platforms, that are relevant to a variety of contexts and applications.