A case study of contributor behavior in Q&A site and tags: the importance of prominent profiles in community productivity
Question-and-answer (Q&A) sites have shown to be a valuable resource for helping people to solve their everyday problems. These sites currently enable a large number of contributors to exchange expertise by different ways (creating questions, answers or comments, and voting in these), and it is noticeable that they contribute in diverse amounts and create content of varying quality.
q&a sites empirical methods quantitative datamining and machine learning studies of wikipedia web