Annotating educational discussion boards to help students who are blind

Maria Luisa Sapino, Kasim Candan, Jong Wook Kim, Fabrizio Antonelli

Research output: Contribution to journalArticle

2 Scopus citations

Abstract

Educational discussion boards are growing in use as they help students share knowledge and doubts in a working/studying environment. Although these interactive tools are highly effective in learning environments, their usability by blind students is very poor. In this paper we develop techniques to improve accessibility of educational content for students who are blind. Threads of messages in discussion boards evolve with new postings, thus just by investigating the subject headings or contents of earlier postings in a message thread, students may not be able to guess the contents of the postings deeper in the hierarchy. In order to overcome the navigation obstacle for users, it is essential to develop techniques that help identify how the content of a discussion board grows. We develop a technique to organise messages in a message board, by automatically classifying and annotating postings to guide users through discussion segments relevant to their navigational goals.

Original languageEnglish (US)
Pages (from-to)294-318
Number of pages25
JournalInternational Journal of Continuing Engineering Education and Life-Long Learning
Volume17
Issue number4-5
StatePublished - 2007

Keywords

  • navigation in message boards
  • rule-based classification
  • website accessibility

ASJC Scopus subject areas

  • Education
  • Engineering(all)

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