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Continuous Edgewrite: Dictionary-based disambiguation instead of explicit segmentation by the user

Research output: Chapter in Book/Report/Conference proceedingConference contributionScientificpeer-review


Original languageEnglish
Title of host publicationProceedings of the Working Conference on Advanced Visual Interfaces, AVI 2012
Number of pages8
Publication statusPublished - 2012
Publication typeA4 Article in a conference publication
Event2012 International Working Conference on Advanced Visual Interfaces, AVI 2012 - Capri Island, Italy
Duration: 21 May 201225 May 2012


Conference2012 International Working Conference on Advanced Visual Interfaces, AVI 2012
CityCapri Island


Edgewrite is a text entry method where the user follows the edges of a physical guiding rectangle to enter corner sequences that are interpreted as characters. The original Edgewrite character set resembles the Latin alphabet and includes explicit character segmentation by lifting the stylus (or centering the joystick, etc). We present a variant of Edgewrite that we call the continuous Edgewrite. It relies on a dictionary instead of user's character segmentation to disambiguate words. New users can use the continuous Edgewrite with the help of an interactive visualization of possible continuations while writing. In a 6-session user study we measured initial text transcription performance (increased from 1 to 5.4 wpm) and the ratio of observed explicit segmentations to optimal continuous writing (decreased from 2.5 to 1.5). These results show that it is possible to learn to use the continuous writing mode, but also that the learning takes some time.

ASJC Scopus subject areas


  • continuous writing, dictionary, disambiguation, EdgeWrite, segmentation, text entry