The MovieLens datasets are widely used in education, research, and industry. They are
downloaded hundreds of thousands of times each year, reflecting their use in popular press …

Research in online content moderation has a long history of exploring different forms that
moderation can take, including both user-driven moderation models on community-based …

We study online social networks in which relationships can be either positive (indicating
relations such as friendship) or negative (indicating relations such as opposition or …

Relations between users on social media sites often reflect a mixture of positive (friendly)
and negative (antagonistic) interactions. In contrast to the bulk of research on social …

Online citizen science projects engage volunteers in collecting, analyzing, and curating
scientific data. Existing projects have demonstrated the value of using volunteers to collect …

The ability to engage in real-time text conversations is an important feature on live streaming
platforms. The moderation of this text content relies heavily on the work of unpaid volunteers …

Billions of people participate in online social activities. Most users participate as readers of
discussion boards, searchers of blog posts, or viewers of photos. A fraction of users become …

With the growth in sociality and interaction around online news media, news sites are
increasingly becoming places for communities to discuss and address common issues …

Crowdsourced labor markets represent a powerful new paradigm for accomplishing work.
Understanding the motivating factors that lead to high quality work could have significant …

How does" self-governance" happen in Wikipedia? Through in-depth interviews with 20
individuals who have held a variety of responsibilities in the English-language Wikipedia …