Abstract—We consider a cognitive radio network where multiple secondary users (SUs) contend for spectrum usage, using random access, over available primary user (PU) channels. Ou...
How to measure usability is an important question in HCI research and user interface evaluation. We review current practice in measuring usability by categorizing and discussing u...
In this paper, we introduce an analysis of the requirements and design choices for hands-free documentation. Hands-busy tasks such as cooking or car repair may require substantial...
We present the architecture, user interface and prototype implementation of Fluid Voice, a proximity based mobile group communication system for opportunistic social exchanges. It...
The distribution of task time data in usability studies is positively skewed. Practitioners who are aware of this positive skew tend to report the sample median. Monte Carlo simul...