What's happening

This article introduces the "What's Happening" desktop application for maintaining and enhancing community awareness. "What's Happening" uses a small visualization display and animation to provide unobtrusive information delivery and lightweight chat-...

Maintaining an awareness of information about one's own community and its members is viewed as being important, but is becoming more challenging today as people are overwhelmed by so many different forms of information. This paper describes the "What's ...

Generalisations of theory change involving operations on arbitrary sets of wffs instead of on belief sets (i.e., sets closed under a consequence relation), have become known as base change. In one view, a base should be thought of as providing more ...