Virtual environments (VEs) allow users to experience and interact with a rich sensory environment, but most virtual worlds contain only sensory information similar to that which w...
Doug A. Bowman, Chris North, Jian Chen, Nicholas F...
The Covering Steiner problem is a common generalization of the k-MST and Group Steiner problems. An instance of the Covering Steiner problem consists of an undirected graph with ed...
Informal presentations are a lightweight means for fast and convenient communication of ideas. People communicate their ideas to others on paper and whiteboards, which afford flui...
Yang Li, James A. Landay, Zhiwei Guan, Xiangshi Re...
The effectiveness of support provided to virtual communities depends strongly on what we know about a particular community of people and in what areas the community needs support....
We consider the classical vertex cover and set cover problems with the addition of hard capacity constraints. This means that a set (vertex) can only cover a limited number of its...