Vibrant online communities are in constant flux. As members join and depart, the
interactional norms evolve, stimulating further changes to the membership and its social …

Recommending products to consumers means not only understanding their tastes, but also
understanding their level of experience. For example, it would be a mistake to recommend …

Abstract Language is a social phenomenon and variation is inherent to its social nature.
Recently, there has been a surge of interest within the computational linguistics (CL) …

Online communities about similar topics may maintain very different norms of interaction.
Past research identifies many processes that contribute to maintaining stable norms …

Many online communities cater to the critical and unmet needs of individuals challenged
with mental illnesses. Generally, communities engender characteristic linguistic practices …

Massive Online Open Courses (MOOCs) have been growing in popularity with educational
researchers, instructors, and learners in online environments. Online discussions are as …

Online health communities (OHCs) provide support across conditions; for weight loss, OHCs
offer support to foster positive behavior change. However, weight loss behaviors can also be …

As user-generated Web content increases, the amount of inappropriate and/or objectionable
content also grows. Several scholarly communities are addressing how to detect and …

Loyalty is an essential component of multi-community engagement. When users have the
choice to engage with a variety of different communities, they often become loyal to just one …

A community's identity defines and shapes its internal dynamics. Our current understanding
of this interplay is mostly limited to glimpses gathered from isolated studies of individual …