HCI, CSCW, and ubicomp researchers have developed new technologies and interaction techniques to support collaboration, ranging from electronic whiteboards to software supporting ...
While social interactions are critical to understanding consumer behavior, the relationship between social and commerce networks has not been explored on a large scale. We analyze...
Many community organizations rely extensively on volunteer work. However, people who wish to help often have difficulties finding the time to volunteer. We are developing mobile s...
In this work we examine the characteristics of social activity and patterns of communication on Twitter, a prominent example of the emerging class of communication systems we call...
Online social network has developed significantly in recent years as a medium of communicating, sharing and disseminating information and spreading influence. Most of current resea...