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
The metropolis keyboard - an exploration of quantitative techniques for virtual keyboard design
UIST '00 Proceedings of the 13th annual ACM symposium on User interface software and technology
Text input for mobile devices: comparing model prediction to actual performance
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
ECSCW'01 Proceedings of the seventh conference on European Conference on Computer Supported Cooperative Work
Language modeling for soft keyboards
Proceedings of the 7th international conference on Intelligent user interfaces
Mobile text entry using three keys
Proceedings of the second Nordic conference on Human-computer interaction
Web accessibility for low bandwidth input
Proceedings of the fifth international ACM conference on Assistive technologies
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
Mobile HCI '02 Proceedings of the 4th International Symposium on Mobile Human-Computer Interaction
The Fastap Keypad and Pervasive Computing
Pervasive '02 Proceedings of the First International Conference on Pervasive Computing
Phrase sets for evaluating text entry techniques
CHI '03 Extended Abstracts on Human Factors in Computing Systems
Input technologies and techniques
The human-computer interaction handbook
Language modeling for soft keyboards
Eighteenth national conference on Artificial intelligence
A Pervasive Keyboard " Separating Input from Display
PERCOM '03 Proceedings of the First IEEE International Conference on Pervasive Computing and Communications
A system for fast, full-text entry for small electronic devices
Proceedings of the 5th international conference on Multimodal interfaces
TiltText: using tilt for text input to mobile phones
Proceedings of the 16th annual ACM symposium on User interface software and technology
A comparison of consecutive and concurrent input text entry techniques for mobile phones
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Model for non-expert text entry speed on 12-button phone keypads
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Twiddler typing: one-handed chording text entry for mobile phones
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Keyboards Redux: Fast Mobile Text Entry
IEEE Pervasive Computing
Alphabetically constrained keypad designs for text entry on mobile devices
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
An enhanced multitap text entry method with predictive next-letter highlighting
CHI '05 Extended Abstracts on Human Factors in Computing Systems
FeelTip: tactile input device for small wearable information appliances
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
Text input disambiguation supported on a hierarchical user model
Proceedings of the 2005 joint conference on Smart objects and ambient intelligence: innovative context-aware services: usages and technologies
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
Investigating text input methods for mobile phones
Telematics and Informatics
État de l'art des méthodes de saisie de données sur dispositifs nomades: typologie des approches
IHM 2004 Proceedings of the 16th conference on Association Francophone d'Interaction Homme-Machine
Indirect text entry using one or two keys
Proceedings of the 8th international ACM SIGACCESS conference on Computers and accessibility
One-key keyboard: a very small QWERTY keyboard supporting text entry for wearable computing
OZCHI '06 Proceedings of the 18th Australia conference on Computer-Human Interaction: Design: Activities, Artefacts and Environments
Word-based predictive text entry using adaptive language models
Natural Language Engineering
Text Entry Systems: Mobility, Accessibility, Universality
Text Entry Systems: Mobility, Accessibility, Universality
Automatic whiteout++: correcting mini-QWERTY typing errors using keypress timing
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Query suggestions for mobile search: understanding usage patterns
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Positional prediction: consonant cluster prediction text entry method for burmese (myanmar language)
CHI '08 Extended Abstracts on Human Factors in Computing Systems
The role of context in query input: using contextual signals to complete queries on mobile devices
Proceedings of the 9th international conference on Human computer interaction with mobile devices and services
Positional mapping Myanmar text input scheme for mobile devices
Proceedings of the 9th international conference on Human computer interaction with mobile devices and services
Efficient context-sensitive word completion for mobile devices
Proceedings of the 10th international conference on Human computer interaction with mobile devices and services
Tlk or txt? Using voice input for SMS composition
Personal and Ubiquitous Computing
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
Improved word list ordering for text entry on ambiguous keypads
Proceedings of the 5th Nordic conference on Human-computer interaction: building bridges
Experimental evaluations of the Twiddler one-handed chording mobile keyboard
Human-Computer Interaction
Text entry in the e-commerce age: two proposals for the severely handicapped
Journal of Theoretical and Applied Electronic Commerce Research
Mid-air text input techniques for very large wall displays
Proceedings of Graphics Interface 2009
Designing phrase builder: a mobile real-time query expansion interface
Proceedings of the 11th International Conference on Human-Computer Interaction with Mobile Devices and Services
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
Barriers to adoption of dictionary-based text-entry methods: a field study
TextEntry '03 Proceedings of the 2003 EACL Workshop on Language Modeling for Text Entry Methods
Etude de l'impact d'une pré-visualisation des résultats d'un système de prédiction de caractères
Proceedings of the 21st International Conference on Association Francophone d'Interaction Homme-Machine
Predictive text entry using syntax and semantics
IWPT '09 Proceedings of the 11th International Conference on Parsing Technologies
What input errors do you experience? Typing and pointing errors of mobile Web users
International Journal of Human-Computer Studies
TapList: testing the effectiveness of tap access to the n-best list in pen-based text entry
Mobility '09 Proceedings of the 6th International Conference on Mobile Technology, Application & Systems
Chinese character entry for mobile phones: a longitudinal investigation
Interacting with Computers
Cell phone design for teenage use
HCI '08 Proceedings of the Third IASTED International Conference on Human Computer Interaction
Small-device users situationally impaired by input
Computers in Human Behavior
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
BloNo: a new mobile text-entry interface for the visually impaired
UAHCI'07 Proceedings of the 4th international conference on Universal access in human-computer interaction: ambient interaction
An accessible and usable soft keyboard
UAHCI'07 Proceedings of the 4th international conference on Universal access in human-computer interaction: ambient interaction
Eyes-free text entry with error correction on touchscreen mobile devices
Proceedings of the 6th Nordic Conference on Human-Computer Interaction: Extending Boundaries
Improving mobile multi-tap text entry for Arabic language
Computer Standards & Interfaces
UniWise: LetterWise pour Unistroke, la prédiction de texte pour améliorer la reconnaissance de geste
Conference Internationale Francophone sur I'Interaction Homme-Machine
KeyGliss: un clavier ambigu prédictif basé sur un appui-glissé
Conference Internationale Francophone sur I'Interaction Homme-Machine
RemoteTouch: touch-screen-like interaction in the tv viewing environment
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
MultiPress: releasing keys for multitap segmentation
CHI '11 Extended Abstracts on Human Factors in Computing Systems
A Meta-Analytical Review of Empirical Mobile Usability Studies
Journal of Usability Studies
The 1line keyboard: a QWERTY layout in a single line
Proceedings of the 24th annual ACM symposium on User interface software and technology
General-purpose text entry rules for devices with 4x3 configurations of buttons
ICCSA'05 Proceedings of the 2005 international conference on Computational Science and its Applications - Volume Part I
A chinese mobile phone input method based on the dynamic and self-study language model
EUC'06 Proceedings of the 2006 international conference on Emerging Directions in Embedded and Ubiquitous Computing
Evaluation of an ambiguous-keyboard prototype scanning-system with word and character disambiguation
BCS '10 Proceedings of the 24th BCS Interaction Specialist Group Conference
Predictive text entry for agglutinative languages using unsupervised morphological segmentation
CICLing'12 Proceedings of the 13th international conference on Computational Linguistics and Intelligent Text Processing - Volume Part II
Comparison of two text entry methods on interactive TV
Proceedings of the 10th European conference on Interactive tv and video
ICCHP'12 Proceedings of the 13th international conference on Computers Helping People with Special Needs - Volume Part II
Classic and Alternative Mobile Search: A Review and Agenda
International Journal of Mobile Human Computer Interaction
Pseudo-pressure detection and its use in predictive text entry on touchscreens
Proceedings of the 25th Australian Computer-Human Interaction Conference: Augmentation, Application, Innovation, Collaboration
Disambiguation of imprecise input with one-dimensional rotational text entry
ACM Transactions on Computer-Human Interaction (TOCHI)
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A new technique to enter text using a mobile phone keypad is described. For text input, the traditional touchtone phone keypad is ambiguous because each key encodes three or four letters. Instead of using a stored dictionary to guess the intended word, our technique uses probabilities of letter sequences --- "prefixes" --- to guess the intended letter. Compared to dictionary-based methods, this technique, called LetterWise, takes significantly less memory and allows entry of non-dictionary words without switching to a special input mode. We conducted a longitudinal study to compare LetterWise to Multitap, the conventional text entry method for mobile phones. The experiment included 20 participants (10 LetterWise, 10 Multitap), and each entered phrases of text for 20 sessions of about 30 minutes each. Error rates were similar between the techniques; however, by the end of the experiment the mean entry speed was 36% faster with LetterWise than with Multitap.