Reliable Visual Analytics with Dimensionality Reduction: Quality Evaluation and Interpretation of Projections

dc.contributor.authorJeon, Hyeonen_US
dc.contributor.authorFujiwara, Takanorien_US
dc.contributor.authorMartins, Rafael M.en_US
dc.contributor.editorIsenberg, Tobiasen_US
dc.contributor.editorSedlmair, Michaelen_US
dc.contributor.editorTierny, Julienen_US
dc.date.accessioned2025-05-26T07:11:11Z
dc.date.available2025-05-26T07:11:11Z
dc.date.issued2025
dc.description.abstractDimensionality reduction (DR) is widely used for visual analytics, but the insights obtained from these visualizations may often be unreliable. For example, DR projections distort the intrinsic structure of high-dimensional data in ways that may not be obvious at first glance, potentially leading analysts to inaccurate interpretations. Even reliable visual patterns may be hard to interpret regarding what exactly they convey about the underlying data, due to the often severe compression from hundreds (or thousands) of dimensions down to the visual space. In this tutorial, we discuss how to enhance the reliability of visual analytics with DR by focusing on two perspectives: quality evaluations and interpretations. While the former helps users identify or create projections with fewer distortions, the latter provides a reliable method for deriving insights from those projections. By combining lecture and coding exercises, we expect our tutorial to provide a grounded basis for audiences to use DR in a more reliable manneren_US
dc.description.sectionheadersTutorials
dc.description.seriesinformationEuroVis 2025 - Panels and Tutorials
dc.identifier.doi10.2312/evt.20251118
dc.identifier.isbn978-3-03868-285-1
dc.identifier.pages3 pages
dc.identifier.urihttps://doi.org/10.2312/evt.20251118
dc.identifier.urihttps://diglib.eg.org/handle/10.2312/evt20251118
dc.publisherThe Eurographics Associationen_US
dc.rightsAttribution 4.0 International License
dc.rights.urihttps://creativecommons.org/licenses/by/4.0/
dc.subjectCCS Concepts: Human-centered computing → Visual analytics; Mathematics of computing → Dimensionality reduction
dc.subjectHuman centered computing → Visual analytics
dc.subjectMathematics of computing → Dimensionality reduction
dc.titleReliable Visual Analytics with Dimensionality Reduction: Quality Evaluation and Interpretation of Projectionsen_US
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