This article presents a rational model developed under the distributed cognition framework that explains how social tags influence knowledge acquisition and adaptation in explorat...
We present Waterhouse, a system for sending and receiving cryptographically protected electronic mail ("secure e-mail"). We show how an existing e-mail interface can be ...
Alex P. Lambert, Stephen M. Bezek, Karrie Karahali...
Entities on social systems, such as users on Twitter, and images on Flickr, are at the core of many interesting applications: they can be ranked in search results, recommended to ...
Social networks and collaborative tagging systems are rapidly gaining popularity as a primary means for storing and sharing data among friends, family, colleagues, or perfect stra...
Ralitsa Angelova, Marek Lipczak, Evangelos E. Mili...
User retention is important to the success of online social media, particularly in virtual world settings where users shape one another’s online experience. We study a rich set ...