Online question and answer (Q&A) sites, which are platforms for users to post and answer
questions on a wide range of topics, are becoming large repositories of valuable knowledge …

Online question-and-answer (Q&A) communities like Stack Overflow have norms that are not
obvious to novice users. Novices create and post programming questions without feedback …

To ensure the post quality, Q&A sites usually develop a list of quality assurance guidelines
for" dos and don'ts", and adopt collaborative editing mechanism to fix quality violations …

To ensure the quality of its shared knowledge, Stack Overflow encourages users to revise
answers through a badge system, which is based on quantitative measures (eg, a badge is …

In online communities a few experts are able to help a large number of help-seekers--
whether in Q&A communities or other forms of online forums. How is this efficiency …

Enormous amounts of knowledge sharing occur every day in community question answering
(CQA) sites, some of which (for example, Stack Overflow or Ask Ubuntu) have become …

Collaborative web sites, such as collaborative encyclopedias, blogs, and forums, are
characterized by a loose edit control, which allows anyone to freely edit their content. As a …

Question answering (Q&A) websites are now large repositories of valuable knowledge.
While most Q&A sites were initially aimed at providing useful answers to the question asker …

Systems for collaborative writing have long captured the attention of CSCW researchers, but
have only recently come into widespread use. One issue in designing and understanding …

Does feedback contribute to collaboration? As in most open participation and contribution
platforms, churn is an issue. The highest churn and dropout rates follow the initial posting of …