Crowdsourcing enables one to leverage on the intelligence and wisdom of potentially large
groups of individuals toward solving problems. Common problems approached with …

In recent years, the reliability of information on the Internet has emerged as a crucial issue of
modern society. Social network sites (SNSs) have revolutionized the way in which …

User contributions in the form of posts, comments, and votes are essential to the success of
online communities. However, allowing user participation also invites undesirable behavior …

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 …

Algorithmic systems---from rule-based bots to machine learning classifiers---have a long
history of supporting the essential work of content moderation and other curation work in …

Most modern Issue Tracking Systems (ITSs) for open source software (OSS) projects allow
users to add comments to issues. Over time, these comments accumulate into discussion …

Anti-social behaviors in social media can happen both at user and community levels. While
a great deal of attention is on the individual as an 'aggressor,'the banning of entire Reddit …

Wikidata is the new, large-scale knowledge base of the Wikimedia Foundation. Its
knowledge is increasingly used within Wikipedia itself and various other kinds of information …

As one of the most commonly read online sources of medical information, Wikipedia is an
influential public health platform. Its medical content, community, collaborations and …

We study the problem of detecting vandals on Wikipedia before any human or known
vandalism detection system reports flagging potential vandals so that such users can be …