ISCAN: a phoneme-based predictive communication aid for nonspeaking individuals

Ha Trinh, Annalu Waller, Keith Vertanen, Per Ola Kristensson, Vicki L. Hanson

    Research output: Chapter in Book/Report/Conference proceedingConference contribution

    6 Citations (Scopus)

    Abstract

    The high incidence of literacy deficits among people with severe speech impairments SSIhas been well documented. Without literacy skills, people with SSI are unable to effectively use orthographic-based communication systems to generate novel linguistic items in spontaneous conversation. To address this problem, phoneme-based communication systems have been proposed which enable users to create spoken output from phoneme sequences. In this paper, we investigate whether prediction techniques can be employed to improve the usability of such systems. We have developed iSCAN, a phoneme-based predictive communication system, which offers phoneme prediction and phoneme-based word prediction. A pilot study with 16 able-bodied participants showed that our predictive methods led to a 108.4% increase in phoneme entry speed and a 79.0% reduction in phoneme error rate. The benefits of the predictive methods were also demonstrated in a case study with a cerebral palsied participant. Moreover, results of a comparative evaluation conducted with the same participant after 16 sessions using iSCAN indicated that our system outperformed an orthographic-based predictive communication device that the participant has used for over 4 years.
    Original languageEnglish
    Title of host publicationASSETS'12
    Subtitle of host publicationProceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility
    Place of PublicationNew York
    PublisherAssociation for Computing Machinery
    Pages57-64
    Number of pages8
    ISBN (Print)9781450313216
    DOIs
    Publication statusPublished - 2012
    Event14th International ACM SIGACCESS Conference on Computers and Accessibility - Millenium Harvest House Hotel, Boulder, Colorado, United States
    Duration: 22 Oct 201224 Oct 2012
    http://assets12.sigaccess.org/index.html

    Conference

    Conference14th International ACM SIGACCESS Conference on Computers and Accessibility
    Abbreviated titleASSETS 2012
    CountryUnited States
    CityBoulder, Colorado
    Period22/10/1224/10/12
    Internet address

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  • Research Output

    • 6 Citations
    • 1 Paper

    ISCAN: a phoneme-based predictive communication aid for nonspeaking individuals

    Trinh, H., Waller, A., Vertanen, K., Kristensson, P. O. & Hanson, V. L., 2012.

    Research output: Contribution to conferencePaper

    Activities

    • 2 Participation in conference

    14th International ACM SIGACCESS Conference on Computers and Accessibility

    Vicki L. Hanson (Participant)

    22 Oct 201224 Oct 2012

    Activity: Participating in or organising an event typesParticipation in conference

    14th International ACM SIGACCESS Conference on Computers and Accessibility

    Annalu Waller (Participant)

    22 Oct 2012

    Activity: Participating in or organising an event typesParticipation in conference

    Cite this

    Trinh, H., Waller, A., Vertanen, K., Kristensson, P. O., & Hanson, V. L. (2012). ISCAN: a phoneme-based predictive communication aid for nonspeaking individuals. In ASSETS'12 : Proceedings of the 14th International ACM SIGACCESS Conference on Computers and Accessibility (pp. 57-64). Association for Computing Machinery. https://doi.org/10.1145/2384916.2384927