Investigating five key predictive text entry with combined distance and keystroke modelling

This paper investigates text entry on mobile devices using only five-keys. Primarily to support text entry on smaller devices than mobile phones, this method can also be used to maximise screen space on mobile phones. Reported combined Fitt’s law and keystroke modelling predicts similar performance...

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Bibliographic Details
Published in:Personal and ubiquitous computing 2008-11, Vol.12 (8), p.589-598
Main Authors: Dunlop, Mark D., Montgomery Masters, Michelle
Format: Article
Language:English
Subjects:
Cell phones
Cellular telephones
Computer Science
Electronic devices
Handheld computers
Human-computer interaction
Keypads
Mobile Computing
Modelling
Original Article
Personal Computing
Text messaging
User Interfaces and Human Computer Interaction
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Summary:This paper investigates text entry on mobile devices using only five-keys. Primarily to support text entry on smaller devices than mobile phones, this method can also be used to maximise screen space on mobile phones. Reported combined Fitt’s law and keystroke modelling predicts similar performance with bigram prediction using a five-key keypad as is currently achieved on standard mobile phones using unigram prediction. User studies reported here show similar user performance on five-key pads as found elsewhere for novice nine-key pad users.
ISSN:1617-4909
1617-4917
DOI:10.1007/s00779-007-0179-7