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Online discussion forums have become an integral component of news, entertainment, information, and video-streaming websites, where people all over the world actively engage in discussions on a wide range of topics including politics, sports, music, business, health, and world affairs. Yet, little is known about their usability for blind users, who aurally interact with the forum conversations using screen reader assistive technology. In an interview study, blind users stated that they often had an arduous and frustrating interaction experience while consuming conversation threads, mainly due to the highly redundant content and the absence of customization options to selectively view portions of the conversations. As an initial step towards addressing these usability concerns, we designed PView - a browser extension that enables blind users to customize the content of forum threads in real time as they interact with these threads. Specifically, PView allows the blind users to explicitly hide any post that is irrelevant to them, and then PView automatically detects and filters out all subsequent posts that are substantially similar to the hidden post in real time, before the users navigate to those portions of the thread. In a user study with blind participants, we observed that compared to the status quo, PView significantly improved the usability, workload, and satisfaction of the participants while interacting with the forums.
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Characterizing Language Use in Online Accessibility Discussion Forums
Discussion forums are one of the favored platforms for knowledge sharing. Given their popularity, copious research exists on understanding the linguistic and behavioral characteristics of forum conversations, so as to inform the design of many downstream applications including discourse visualization, sentiment analysis, and question answering. However, prior investigations have mainly focused on general forums designed primarily for sighted users, and as such the applicability of their findings to dedicatedaccessibilitydiscussion forums frequented by blind screen reader users remains unanswered. To bridge this knowledge gap and facilitate the development of better-informed assistive technologies for blind people, we investigated language use in accessibility forums and identified unique linguistic and cognitive characteristics of discussions in these forums. To aid our investigation, we collected a dataset of 1000 accessibility forum threads and a baseline of 1000 general forum threads, while ensuring that the threads in both groups discussed similar topics. In our analyses, we found the language in accessibility forum conversations to be more task-oriented and less abstract, with significantly higher number of descriptive action verbs than in general forum conversations. Moreover, the accessibility threads had significantly higher authenticity scores than general threads, which indicates that blind users are less reserved in online discussions, and are instead more spontaneous and expressive in their writing. We lastly discuss the implications of our findings, including how assistive technologies can be enhanced to improve blind users’ experience in online discussion forums.
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- Award ID(s):
- 2045523
- PAR ID:
- 10670661
- Publisher / Repository:
- ACM
- Date Published:
- Journal Name:
- ACM Transactions on the Web
- ISSN:
- 1559-1131
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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- Free Publicly Accessible Full Text
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Accepted Manuscript
- Journal Article:
- https://doi.org/10.1145/3757745
