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 …

Help-giving interactions in open source technical support often involve more people than the
conventional help-giver help-seeker pair. Contributions include lightweight but useful me …

Posing a question to an online question and answer community does not guarantee a
response. Significant prior work has explored and identified members' motivations for …

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 …

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 …

A critical aspect of formal help-giving tasks in the enterprise is finding the right expert. We
built and evaluated a tool, Find an Expert, to examine what the most important expert …

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 …

Often, attention to “community” focuses on motivating core members or helping newcomers
become regulars. However, much of the traffic to online communities comes from people …

The most sustainable online communities are those that allow and encourage their users to
have a voice in how the community evolves. The proliferation of online communities with …

After years of rapid growth, Q&A websites, such as Yahoo Answers and Baidu Zhidao now
start to utilize recommender systems to route questions to potential answerers. Traditional …