Representing a stable environment by egocentric updating and invariant representations
Spatial Cognition and Computation
Metrics for text entry research: an evaluation of MSD and KSPC, and a new unified error metric
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Multimodal 'eyes-free' interaction techniques for wearable devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Phrase sets for evaluating text entry techniques
CHI '03 Extended Abstracts on Human Factors in Computing Systems
Composing letters with a simulated listening typewriter
CHI '82 Proceedings of the 1982 Conference on Human Factors in Computing Systems
Examining mobile phone text legibility while walking
CHI '04 Extended Abstracts on Human Factors in Computing Systems
A Comparative Investigation into Two Pointing Systems for Use with Wearable Computers While Mobile
ISWC '04 Proceedings of the Eighth International Symposium on Wearable Computers
An empirical comparison of use-in-motion evaluation scenarios for mobile computing devices
International Journal of Human-Computer Studies
Mobile text entry: relationship between walking speed and text input task difficulty
Proceedings of the 7th international conference on Human computer interaction with mobile devices & services
Proceedings of the 7th international conference on Human computer interaction with mobile devices & services
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
How do people tap when walking? An empirical investigation of nomadic data entry
International Journal of Human-Computer Studies
Investigating the effectiveness of tactile feedback for mobile touchscreens
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the 9th international conference on Human computer interaction with mobile devices and services
A technique for incorporating dynamic paths in lab-based mobile evaluations
BCS-HCI '07 Proceedings of the 21st British HCI Group Annual Conference on People and Computers: HCI...but not as we know it - Volume 1
Predicting the cost of error correction in character-based text entry technologies
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
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Nowadays, we input text not only on stationary devices, but also on handheld devices while walking, driving, or commuting. Text entry on the move, which we term as nomadic text entry, is generally slower. This is partially due to the need for users to move their visual focus from the device to their surroundings for navigational purposes and back. To investigate if better feedback about users' surroundings on the device can improve performance, we present a number of new and existing feedback systems: textual, visual, textual & visual, and textual & visual via translucent keyboard. Experimental comparisons between the conventional and these techniques established that increased ambient awareness for mobile users enhances nomadic text entry performance. Results showed that the textual and the textual & visual via translucent keyboard conditions increased text entry speed by 14% and 11%, respectively, and reduced the error rate by 13% compared to the regular technique. The two methods also significantly reduced the number of collisions with obstacles.