The design and evaluation of a high-performance soft keyboard
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Predicting text entry speed on mobile phones
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Text input for mobile devices: comparing model prediction to actual performance
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
LetterWise: prefix-based disambiguation for mobile text input
Proceedings of the 14th annual ACM symposium on User interface software and technology
An evaluation of mobile phone text input methods
AUIC '02 Proceedings of the Third Australasian conference on User interfaces - Volume 7
The Psychology of Human-Computer Interaction
The Psychology of Human-Computer Interaction
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
KSPC (Keystrokes per Character) as a Characteristic of Text Entry Techniques
Mobile HCI '02 Proceedings of the 4th International Symposium on Mobile Human-Computer Interaction
Phrase sets for evaluating text entry techniques
CHI '03 Extended Abstracts on Human Factors in Computing Systems
Wearable computing and contextual awareness
Wearable computing and contextual awareness
TiltText: using tilt for text input to mobile phones
Proceedings of the 16th annual ACM symposium on User interface software and technology
Keyboards Redux: Fast Mobile Text Entry
IEEE Pervasive Computing
AppLens and launchTile: two designs for one-handed thumb use on small devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
An empirical study of typing rates on mini-QWERTY keyboards
CHI '05 Extended Abstracts on Human Factors in Computing Systems
Qwerty-like 3x4 keypad layouts for mobile phone
CHI '05 Extended Abstracts on Human Factors in Computing Systems
Evaluating mobile text entry strategies with finite state automata
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
LetterEase: Improving text entry on a handheld device via letter reassignment
OZCHI '05 Proceedings of the 17th Australia conference on Computer-Human Interaction: Citizens Online: Considerations for Today and the Future
The Korean twiddler: one-handed chording text entry for Korean mobile phones
CHI '06 Extended Abstracts on Human Factors in Computing Systems
Can spatial mnemonics accelerate the learning of text input chords?
Proceedings of the working conference on Advanced visual interfaces
Ordinateur porté: dispositifs d'entrée sortie
IHM 2005 Proceedings of the 17th international conference on Francophone sur l'Interaction Homme-Machine
Bimanual text entry using game controllers: Relying on users' spatial familiarity with QWERTY
Interacting with Computers
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Comparing two methods for gesture based short text input using chording
CHI '07 Extended Abstracts on Human Factors in Computing Systems
Text Entry Systems: Mobility, Accessibility, Universality
Text Entry Systems: Mobility, Accessibility, Universality
Five-key text input using rhythmic mappings
Proceedings of the 9th international conference on Multimodal interfaces
Automatic whiteout++: correcting mini-QWERTY typing errors using keypress timing
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Blindsight: eyes-free access to mobile phones
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
The performance of hand postures in front- and back-of-device interaction for mobile computing
International Journal of Human-Computer Studies
Theorizing mobility in community networks
International Journal of Human-Computer Studies
Experimental evaluations of the Twiddler one-handed chording mobile keyboard
Human-Computer Interaction
ACM Transactions on Computer-Human Interaction (TOCHI)
A model of two-thumb chording on a phone keypad
Proceedings of the 11th International Conference on Human-Computer Interaction with Mobile Devices and Services
Mobile interaction and future developments in mobile phone user interfaces
IASTED-HCI '07 Proceedings of the Second IASTED International Conference on Human Computer Interaction
Text entry performance of VirHKey in keyboard use
HCI '08 Proceedings of the Third IASTED International Conference on Human Computer Interaction
A simple index for multimodal flexibility
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Handheld haptic display with braille I/O
UAHCI'07 Proceedings of the 4th international conference on Universal access in human-computer interaction: ambient interaction
RearType: text entry using keys on the back of a device
Proceedings of the 12th international conference on Human computer interaction with mobile devices and services
UniGuide: vers un guide dynamique pour Unistroke
Conference Internationale Francophone sur I'Interaction Homme-Machine
User learning and performance with bezel menus
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Designing and evaluating text entry methods
CHI '12 Extended Abstracts on Human Factors in Computing Systems
Input finger detection for nonvisual touch screen text entry in Perkinput
Proceedings of Graphics Interface 2012
A text input method for half-sized keyboard using keying interval
Proceedings of the 11th International Conference on Mobile and Ubiquitous Multimedia
Dynamic text management for see-through wearable and heads-up display systems
Proceedings of the 2013 international conference on Intelligent user interfaces
ZoomBoard: a diminutive qwerty soft keyboard using iterative zooming for ultra-small devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Light on horizontal interactive surfaces: Input space for tabletop computing
ACM Computing Surveys (CSUR)
Mime: compact, low power 3D gesture sensing for interaction with head mounted displays
Proceedings of the 26th annual ACM symposium on User interface software and technology
Airwriting: bringing text entry to wearable computers
XRDS: Crossroads, The ACM Magazine for Students - Wearable Computing: Getting Dressed in Tech
Disambiguation of imprecise input with one-dimensional rotational text entry
ACM Transactions on Computer-Human Interaction (TOCHI)
Airwriting: a wearable handwriting recognition system
Personal and Ubiquitous Computing
Personal and Ubiquitous Computing
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An experienced user of the Twiddler, a one--handed chording keyboard, averages speeds of 60 words per minute with letter--by--letter typing of standard test phrases. This fast typing rate coupled with the Twiddler's 3x4 button design, similar to that of a standard mobile telephone, makes it a potential alternative to multi--tap for text entry on mobile phones. Despite this similarity, there is very little data on the Twiddler's performance and learnability. We present a longitudinal study of novice users' learning rates on the Twiddler. Ten participants typed for 20 sessions using two different methods. Each session is composed of 20 minutes of typing with multi--tap and 20 minutes of one--handed chording on the Twiddler. We found that users initially have a faster average typing rate with multi--tap; however, after four sessions the difference becomes negligible, and by the eighth session participants type faster with chording on the Twiddler. Furthermore, after 20 sessions typing rates for the Twiddler are still increasing.