When posts are removed on a social media platform, users may or may not receive an
explanation. What kinds of explanations are provided? Do those explanations matter? Using …

Understanding social interaction within groups is key to analyzing online communities. Most
current work focuses on structural properties: who talks to whom, and how such interactions …

This study explores how a piece of information flows in social media–based public forums,
whether opinion leaders emerge from this flow of information, and what characteristics …

Online discussion in form of written comments is a core component of many social media
platforms. It has attracted increasing attention from academia, mainly because theories from …

In this work we study the dynamical features of editorial wars in Wikipedia (WP). Based on
our previously established algorithm, we build up samples of controversial and peaceful …

Social news and content aggregation Web sites have become massive repositories of
valuable knowledge on a diverse range of topics. Millions of Web-users are able to leverage …

Large-scale discussions between many participants abound on the internet today, on topics
ranging from political arguments to group coordination. But as these discussions grow to …

Discussion threads form a central part of the experience on many Web sites, including social
networking sites such as Facebook and Google Plus and knowledge creation sites such as …

Background Despite the undisputed role of emotions in teamwork, not much is known about
the make-up of emotions in online collaboration. Publicly available repositories of …

Collaborative content creation inevitably reaches situations where different points of view
lead to conflict. We focus on Wikipedia, the free encyclopedia anyone may edit, where …