—This paper studies economic models of user participation incentive in participatory sensing applications. User participation is the most important element in participatory sensi...
We present a mobile platform for body sensor networking based on a smartphone for lightweight signal processing of sensor mote data. The platform allows for local processing of da...
Edmund Y. W. Seto, Eladio Martin, Allen Y. Yang, P...
We present Gatekeeper, a decentralized protocol that performs Sybil-resilient node admission control based on a social network. Gatekeeper can admit most honest nodes while limiti...
With the increase of automated teller machine (ATM) frauds, new authentication mechanisms are developed to overcome security problems of personal identification numbers (PIN). Th...
Alexander De Luca, Marc Langheinrich, Heinrich Hus...
We present RoCo, the first robotic computer designed with the ability to move its monitor in subtly expressive ways that respond to and encourage its user's own postural move...