Dialing for documents: an experiment in information theory
UIST '94 Proceedings of the 7th annual ACM symposium on User interface software and technology
Predicting text entry speed on mobile phones
Proceedings of the SIGCHI conference on Human Factors in Computing Systems
Mobile text entry using three keys
Proceedings of the second Nordic conference on Human-computer interaction
A character-level error analysis technique for evaluating text entry methods
Proceedings of the second Nordic conference on Human-computer interaction
Measuring errors in text entry tasks: an application of the Levenshtein string distance statistic
CHI '01 Extended Abstracts on Human Factors in Computing Systems
Shorthand writing on stylus keyboard
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
Designing human-computer interfaces for quadriplegic people
ACM Transactions on Computer-Human Interaction (TOCHI)
A microcomputer-based control and communication system for the severely disabled
ACM SIGCAPH Computers and the Physically Handicapped
Towards an adaptive communication aid with text input from ambiguous keyboards
EACL '03 Proceedings of the tenth conference on European chapter of the Association for Computational Linguistics - Volume 2
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
UIST '06 Proceedings of the 19th annual ACM symposium on User interface software and technology
Alternative text entry using different input methods
Proceedings of the 8th international ACM SIGACCESS conference on Computers and accessibility
Indirect text entry using one or two keys
Proceedings of the 8th international ACM SIGACCESS conference on Computers and accessibility
Text Entry Systems: Mobility, Accessibility, Universality
Text Entry Systems: Mobility, Accessibility, Universality
Sibylle, An Assistive Communication System Adapting to the Context and Its User
ACM Transactions on Accessible Computing (TACCESS)
User errors on scanning keyboards: Empirical study, model and design principles
Interacting with Computers
Designing a Scanning On-Screen Keyboard for People with Severe Motor Disabilities
ICCHP '08 Proceedings of the 11th international conference on Computers Helping People with Special Needs
Evaluating the Hands-Free Mouse Control System: An Initial Case Study
ICCHP '08 Proceedings of the 11th international conference on Computers Helping People with Special Needs
Text Entry System Based on a Minimal Scan Matrix for Severely Physically Handicapped People
ICCHP '08 Proceedings of the 11th international conference on Computers Helping People with Special Needs
User Interaction with Word Prediction: The Effects of Prediction Quality
ACM Transactions on Accessible Computing (TACCESS)
AFIPS '74 Proceedings of the May 6-10, 1974, national computer conference and exposition
3DScan: an environment control system supporting persons with severe motor impairments
Proceedings of the 11th international ACM SIGACCESS conference on Computers and accessibility
Automatic and self-paced scanning for alternative text entry
Telehealth/AT '08 Proceedings of the IASTED International Conference on Telehealth/Assistive Technologies
A flexible on-screen keyboard: dynamically adapting for individuals' needs
UAHCI'07 Proceedings of the 4th international conference on Universal access in human-computer interaction: applications and services
Qanti: a software tool for quick ambiguous non-standard text input
ICCHP'10 Proceedings of the 12th international conference on Computers helping people with special needs
CHANTI: predictive text entry using non-verbal vocal input
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Speed-accuracy tradeoffs in specialized keyboards
International Journal of Human-Computer Studies
The proceedings of the 13th international ACM SIGACCESS conference on Computers and accessibility
Student assessment in the ubiquitously connected world
ACM SIGCAS Computers and Society
DualScribe: a keyboard replacement for those with friedreich's ataxia and related diseases
ICCHP'12 Proceedings of the 13th international conference on Computers Helping People with Special Needs - Volume Part II
Toward a design of word processing environment for people with disabilities
Proceedings of the 14th international ACM SIGACCESS conference on Computers and accessibility
Mouse mode of OnScreenDualScribe: three types of keyboard-driven mouse replacement
CHI '13 Extended Abstracts on Human Factors in Computing Systems
Focused and casual interactions: allowing users to vary their level of engagement
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility
OnScreenDualScribe: a computer operation tool for users with a neuromuscular disease
UAHCI'13 Proceedings of the 7th international conference on Universal Access in Human-Computer Interaction: design methods, tools, and interaction techniques for eInclusion - Volume Part I
Disambiguation of imprecise input with one-dimensional rotational text entry
ACM Transactions on Computer-Human Interaction (TOCHI)
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The design and evaluation of a scanning ambiguous keyboard (SAK) is presented. SAK combines the most demanding requirement of a scanning keyboard—input using one key or switch—with the most appealing feature of an ambiguous keyboard—one key press per letter. The optimal design requires just 1.713 scan steps per character for English text entry. In a provisional evaluation, 12 able-bodied participants each entered 5 blocks of text with the scanning interval decreasing from 1100 ms initially to 700 ms at the end. The average text entry rate in the 5th block was 5.11 wpm with 99% accuracy. One participant performed an additional five blocks of trials and reached an average speed of 9.28 wpm on the 10th block. Afterwards, the usefulness of the approach for persons with severe physical disabilities was shown in a case study with a software implementation of the idea explicitly adapted for that target community.