Tactile Presentation of Network Data: Text, Matrix or Diagram?

Yang, Yalong; Marriott, Kim; Butler, Matthew; Goncu, Cagatay; Holloway, Leona

doi:10.1145/3313831.3376367

Cited by 21 publications

(17 citation statements)

References 33 publications

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“…It also requires a prebuilt 3D protein structure, which can be a difficult task for teachers and researchers. The use of note-link representation in the conversion of social network visualization from educational materials to tactile graphics was deemed the most effective way to identify the connection between two networks [50]. We also found that the small sample size and the lack of variability in the graphs may have prevented the study and results from being complete and accurate.…”

Section: Advantages and Disadvantages Of Existing Solutions In Education And Adaption Of Bvimentioning

confidence: 91%

“…To the best of our knowledge, one of the current problems confronting BVI individuals is the lack of teaching materials in the field of education, especially in STEM subjects. Several primary studies, such as [11,49,50,56], presented different approaches as a solution to this problem. Giovanni and Morash [11] introduced a machine vision-based tactile graphics helper (TGH), which followed the fingers of blind students as they investigated tactile graphics and enabled them to obtain refined audio messages regarding the tactile graphics without sighted assistance.…”

Section: Tactile Graphics For Stem Subjects and Braille Booksmentioning

confidence: 99%

“…The software plugin could also be used to classify strategies by which those functions can be improved or changed to heal diseases and improve human health. Yang et al [50] conducted a controlled study with BVI participants and compared four tactile network representations: organic node-link diagrams, grid node-link diagrams, adjacency matrices, and braille lists. Network forms are usually utilized to study and represent social networks, biological networks, and software in popular media.…”

Section: Tactile Graphics For Stem Subjects and Braille Booksmentioning

confidence: 99%

“…Diagrams and graphs from school textbooks. Scientific diagrams, such as biological molecules [49], and node-link diagram [50], an electronic circuit [56] enable BVI students to research with their sighted peers. The software plugin to convert proteins into tactile graphics was developed with the advantages of running on Windows, Mac, and Linux operating systems and has been made accessible to BVI through its text console interface, which can be used with a screen reader or Braille display [49].…”

Section: Advantages and Disadvantages Of Existing Solutions In Education And Adaption Of Bvimentioning

confidence: 99%

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A Systematic Literature Review on the Automatic Creation of Tactile Graphics for the Blind and Visually Impaired

Mukhiddinov

Kim

2021

Processes

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Currently, a large amount of information is presented graphically. However, visually impaired individuals do not have access to visual information. Instead, they depend on tactile illustrations—raised lines, textures, and elevated graphics that are felt through touch—to perceive geometric and various other objects in textbooks. Tactile graphics are considered an important factor for students in the science, technology, engineering, and mathematics fields seeking a quality education because teaching materials in these fields are frequently conveyed with diagrams and geometric figures. In this paper, we conducted a systematic literature review to identify the current state of research in the field of automatic tactile graphics generation. Over 250 original research papers were screened and the most appropriate studies on automatic tactile graphic generation over the last six years were classified. The reviewed studies explained numerous current solutions in static and dynamic tactile graphics generation using conventional computer vision and artificial intelligence algorithms, such as refreshable tactile displays for education and machine learning models for tactile graphics classification. However, the price of refreshable tactile displays is still prohibitively expensive for low- and middle-income users, and the lack of training datasets for the machine learning model remains a problem.

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Section: Advantages and Disadvantages Of Existing Solutions In Education And Adaption Of Bvimentioning

confidence: 91%

Section: Tactile Graphics For Stem Subjects and Braille Booksmentioning

confidence: 99%

Section: Tactile Graphics For Stem Subjects and Braille Booksmentioning

confidence: 99%

Section: Advantages and Disadvantages Of Existing Solutions In Education And Adaption Of Bvimentioning

confidence: 99%

See 2 more Smart Citations

A Systematic Literature Review on the Automatic Creation of Tactile Graphics for the Blind and Visually Impaired

Mukhiddinov

Kim

2021

Processes

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“…In tactile graphics, heavy guidelines (e.g., grids) can hamper the efficient perception of data, as with overwhelming content and ambiguous textures that are used in place of color [EW17b, EW17a, YMB ∗ 20]. Grasping a chart's orientation is also crucial for a visually impaired user to successfully understand the visualization [EW17b].…”

Section: Design Spacementioning

confidence: 99%

Accessible Visualization: Design Space, Opportunities, and Challenges

Kim

Joyner

Riegelhuth

et al. 2021

Computer Graphics Forum

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Visualizations are now widely used across disciplines to understand and communicate data. The benefit of visualizations lies in leveraging our natural visual perception. However, the sole dependency on vision can produce unintended discrimination against people with visual impairments. While the visualization field has seen enormous growth in recent years, supporting people with disabilities is much less explored. In this work, we examine approaches to support this marginalized user group, focusing on visual disabilities. We collected and analyzed papers published for the last 20 years on visualization accessibility. We mapped a design space for accessible visualization that includes seven dimensions: user group, literacy task, chart type, interaction, information granularity, sensory modality, assistive technology. We described the current knowledge gap in light of the latest advances in visualization and presented a preliminary accessibility model by synthesizing findings from existing research. Finally, we reflected on the dimensions and discussed opportunities and challenges for future research.

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Enhancing statistical chart accessibility for people with low vision: insights from a user test

Alcaraz-Martínez,

Ribera,

Adeva-Fillol

et al. 2024

Univ Access Inf Soc

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A remote user test was performed with two versions (one accessible and one non-accessible) of three types of web-based charts (horizontal bar chart, vertical stacked bar chart, and line chart). The objectives of the test were: (a) to validate a set of heuristic indicators for the evaluation of the accessibility of statistical charts presented in a previous work (Fariñas Falcón et al. in Mediocentro Electrónica 21(1):65–68, 2017); (b) to identify new barriers and preferences for users with low vision in the access and use of this content not previously contemplated. 12 users were tested, with a variety of conditions associated with low vision: low visual acuity (6 users), reduced central vision (2 users), reduced peripheral vision (2 users), blurry vision (1 user), sensitivity to light (3 users), Nystagmus (2 users) and color vision deficiency (CVD) (4 users). From a quantitative standpoint, accessible versions of charts were more efficient, effective, and satisfactory. From a qualitative point of view, results verify the relevance of heuristics H2, Legend; H3, Axes; H6, Data source (as data table); H10, Safe colors; H11, Contrast; H12, Legibility; H13, Image quality; H14, Resize; H16, Focus visible; H17, Independent navigation; related to the proposed tasks. As new observations, tooltips were highly valued by all users, but their implementation must be improved to avoid covering up significant parts of the charts when displayed. The data table has also been frequently used by all users, especially in the non-accessible versions, allowing them to carry out tasks more efficiently. The position and size of the legend can be a significant barrier if it is too small or appears in an unusual position. Finally, despite the limitations related to color perception, some users prefer color graphics to black and white, so, to target all profiles, it is necessary to redundantly encode categories with colors and patterns as well.

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Tactile Presentation of Network Data: Text, Matrix or Diagram?

Cited by 21 publications

References 33 publications

A Systematic Literature Review on the Automatic Creation of Tactile Graphics for the Blind and Visually Impaired

A Systematic Literature Review on the Automatic Creation of Tactile Graphics for the Blind and Visually Impaired

Accessible Visualization: Design Space, Opportunities, and Challenges

Enhancing statistical chart accessibility for people with low vision: insights from a user test

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