In this paper, we describe a set of claims that have evolved from our work in designing visual representations of groups in online environments. We argue that these claims can ser...
We present an algorithm for detecting and modeling rhythmic temporal patterns from the record of an individual's computer activity, or online "presence." The model ...
We revisit the Fitts'law model published 25 years ago by Card, English, and Burr. Their research was important because it was the first comparative evaluation of the mouse, a...
This paper describes an ongoing research project aiming to find design implications for information technology supporting police patrol work. A field study of approximately 300 ho...
Adding multiscale capabilities to collaborative virtual environments can potentially help people work on very large electronic worlds. Our experiment shows that user performance o...