This paper focuses on online gift exchange in a setting where online and offline interactions are tightly intertwined and most of the exchanges require face-to-face interaction to...
Traditional online social network sites use a single monolithic "friends" relationship to link users. However, users may have more in common with strangers, suggesting t...
Search engines make it easy to check facts online, but finding some specific kinds of information sometimes proves to be difficult. We studied the behavioral signals that suggest ...
An in-depth understanding of human factors in web-based interaction requires a methodology which enables researchers to chart online actions, understand the cognitive processes gu...
Online information services have grown too large for users to navigate without the help of automated tools such as collaborative filtering, which makes recommendations to users ba...