We establish a nonlinear lower bound for halfplane range searching over a group. Specifically, we show that summing up the weights of n (weighted) points within n halfplanes requir...
Abstract. A growing amounts of information are currently being generated and stored in the World Wide Web (WWW), in particular, researchers in any field can find a lot of publicati...
This article presents a rational model developed under the distributed cognition framework that explains how social tags influence knowledge acquisition and adaptation in explorat...
Personal information management (PIM) is an important and hard research problem. Previous systems suffer inflexibility because of strict hierarchies and immobility. I present an a...
The Malibu system provides peripheral access to and awareness of activities, tasks, social-bookmark resources, and feeds to assist knowledge workers in their activity-centric work...
Werner Geyer, Beth Brownholtz, Michael J. Muller, ...