This paper gives an overview of RadioActive, a largescale asynchronous audio messaging platform for mobile devices. It supports persistent chat spaces that allow users to engage i...
In this paper we describe an image-based approach to finding location-based information from camera-equipped mobile devices. We introduce a point-by-photograph paradigm, where user...
We report on a diary study of how and why knowledge workers use the World Wide Web. By examining in detail a complete two-day set of Web activities from each of 24 people, we cons...
We propose a framework for visual and haptic collaboration in X3D/VRML shared virtual spaces. In this collaborative framework, two pipelines—visual and haptic—complement each o...
Many mobile phones integrate services such as personal calendars. Given the social nature of the stored data, however, users often need to access such information as part of a pho...