Picture of a sphere with binary code

Making Strathclyde research discoverable to the world...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. It exposes Strathclyde's world leading Open Access research to many of the world's leading resource discovery tools, and from there onto the screens of researchers around the world.

Explore Strathclyde Open Access research content

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

Dunlop, M. and Masters, M.M. (2008) Investigating five key predictive text entry with combined distance and keystroke modelling. Personal and Ubiquitous Computing, 12 (8). pp. 589-598. ISSN 1617-4909

[img]
Preview
PDF (strathprints004830.pdf)
strathprints004830.pdf

Download (541kB) | Preview

Abstract

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.