VisuaLint: Sketchy In Situ Annotations of Chart Construction Errors

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dc.contributor.authorHopkins, Aspen K.en_US
dc.contributor.authorCorrell, Michaelen_US
dc.contributor.authorSatyanarayan, Arvinden_US
dc.contributor.editorViola, Ivan and Gleicher, Michael and Landesberger von Antburg, Tatianaen_US
dc.date.accessioned2020-05-24T13:00:35Z
dc.date.available2020-05-24T13:00:35Z
dc.date.issued2020
dc.description.abstractChart construction errors, such as truncated axes or inexpressive visual encodings, can hinder reading a visualization, or worse, imply misleading facts about the underlying data. These errors can be caught by critical readings of visualizations, but readers must have a high level of data and design literacy and must be paying close attention. To address this issue, we introduce VisuaLint: a technique for surfacing chart construction errors in situ. Inspired by the ubiquitous red wavy underline that indicates spelling mistakes, visualization elements that contain errors (e.g., axes and legends) are sketchily rendered and accompanied by a concise annotation. VisuaLint is unobtrusive-it does not interfere with reading a visualization-and its direct display establishes a close mapping between erroneous elements and the expression of error. We demonstrate five examples of VisualLint and present the results of a crowdsourced evaluation (N = 62) of its efficacy. These results contribute an empirical baseline proficiency for recognizing chart construction errors, and indicate near-universal difficulty in error identification. We find that people more reliably identify chart construction errors after being shown examples of VisuaLint, and prefer more verbose explanations for unfamiliar or less obvious flaws.en_US
dc.description.number3
dc.description.sectionheadersUser-Centered Visual Design and Interaction
dc.description.seriesinformationComputer Graphics Forum
dc.description.volume39
dc.identifier.doi10.1111/cgf.13975
dc.identifier.issn1467-8659
dc.identifier.pages219-228
dc.identifier.urihttps://doi.org/10.1111/cgf.13975
dc.identifier.urihttps://diglib.eg.org:443/handle/10.1111/cgf13975
dc.publisherThe Eurographics Association and John Wiley & Sons Ltd.en_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/]
dc.subjectHuman centered computing
dc.subjectVisualization techniques
dc.titleVisuaLint: Sketchy In Situ Annotations of Chart Construction Errorsen_US
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