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CHI
2010
ACM
15 years 4 months ago
What do you know?: experts, novices and territoriality in collaborative systems
When experts participate in collaborative systems, tension may arise between them and novice contributors. In particular, when experts perceive novices as a bother or a threat, th...
Jennifer Thom-Santelli, Dan Cosley, Geri Gay
CHI
2010
ACM
15 years 1 months ago
Across boundaries of influence and accountability: the multiple scales of public sector information systems
The use of ICTs in the public sector has long been touted for its potential to transform the institutions that govern and provide social services. The focus, however, has largely ...
Christopher A. Le Dantec, W. Keith Edwards
CHI
2005
ACM
14 years 12 months ago
A closed-loop tactor frequency control system for vibrotactile feedback
In this paper, we address the problem of maintaining a precise frequency in vibrating motors for use as vibrotactile cueing devices. Our solution utilizes a piezoelectric film sen...
Justin Cohen, Masataka Niwa, Robert W. Lindeman, H...
CHI
2010
ACM
15 years 4 months ago
The secure haptic keypad: a tactile password system
Authentication in public spaces poses significant security risks. Most significantly, passwords can be stolen, potentially leading to fraud. A common method to steal a PIN is thro...
Andrea Bianchi, Ian Oakley, Dong Soo Kwon
CHI
2010
ACM
15 years 4 months ago
InPhase: evaluation of a communication system focused on "happy coincidences" of daily behaviors
To supplement existing forms of communication such as telephone and e-mail, this research proposes a new method of communicating “awareness” between people who are separated b...
Hitomi Tsujita, Koji Tsukada, Itiro Siio