A special virtual keyboard for disabled computer users

Shiu Fung Lau, Chun Bun Henry Chan

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review

1 Citation (Scopus)


In this paper, we present a special virtual keyboard for computer users with disabilities who have problems typing. In particular, the keys are placed based on user typing habit and determined by a genetic algorithm (GA). When a disabled user types on a QWERTY keyboard, the typing cost is high, because the keys are not optimally arranged for disabled users, who can only type with one finger. With the proposed keyboard, the keys can be customised and arranged to minimise the typing cost (e.g., certain keys should be placed close to one another). Our analysis indicates that the proposed keyboard can outperform the traditional keyword by about 40 per cent. Hence the special virtual keyboard can facilitate disabled users to type more effectively and efficiently.
Original languageEnglish
Title of host publicationProceedings of the International MultiConference of Engineers and Computer Scientists 2017, IMECS 2017
PublisherNewswood Limited
Number of pages6
ISBN (Electronic)9789881404732
Publication statusPublished - 1 Jan 2017
Event2017 International MultiConference of Engineers and Computer Scientists, IMECS 2017 - The Royal Garden Hotel, Hong Kong, Hong Kong
Duration: 15 Mar 201717 Mar 2017


Conference2017 International MultiConference of Engineers and Computer Scientists, IMECS 2017
Country/TerritoryHong Kong
CityHong Kong


  • Assistive technology
  • Human computer interface.
  • Keyboard

ASJC Scopus subject areas

  • Computer Science (miscellaneous)

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