Japanese / English

Detail of Publication

Text Language English
Authors Banri Kakehi, Masakazu Iwamura, Kazunori Minatani, Koichi Kise
Title Grouping Efect for Bar Graph Summarization for People with Visual Impairments
Journal Proceedings of the 26th International ACM SIGACCESS Conference on Computers and Accessibility (ASSETS '24)
Location St. John's, NL, Canada
Reviewed or not Reviewed
Presentation type Poster
Month & Year October 2024
Abstract When communicating numerical data to people with visual impairments (PVI), summaries provided by current data visualization solutions tend to lose important information during summarization. To address this issue, our work focuses on summarization through bar grouping in bar graphs. Neither the effect of grouping nor the appropriate granularity of grouping has been discussed so far. Therefore, we investigate the cognitive effects of grouping and its relationship to the number of groups. A user study involving nine PVI (five blind and four with low vision) revealed that summarization through bar grouping conveys information significantly more accurately compared to simply reading individual data points, despite the inherent error produced by grouping. Additionally, we propose a cognitive error model to explain the characteristics of the observed errors.
DOI 10.1145/3663548.3688534
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