DimLift: Interactive Hierarchical Data Exploration Through Dimensional Bundling

Laura Garrison; Juliane Muller; Stefanie SchreiberSteffen Oeltze-JafraHelwig HauserStefan Bruckner

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DimLift: Interactive Hierarchical Data Exploration Through Dimensional Bundling

机译：DimLift: Interactive Hierarchical Data Exploration Through Dimensional Bundling

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The identification of interesting patterns and relationships is essential to exploratory data analysis. This becomes increasingly difficult in high dimensional datasets. While dimensionality reduction techniques can be utilized to reduce the analysis space, these may unintentionally bury key dimensions within a larger grouping and obfuscate meaningful patterns. With this work we introduce &italic&DimLift&/italic&, a novel visual analysis method for creating and interacting with &italic&dimensional bundles&/italic&. Generated through an iterative dimensionality reduction or user-driven approach, &italic&dimensional bundles&/italic& are expressive groups of dimensions that contribute similarly to the variance of a dataset. Interactive exploration and reconstruction methods via a layered parallel coordinates plot allow users to &italic&lift&/italic& interesting and subtle relationships to the surface, even in complex scenarios of missing and mixed data types. We exemplify the power of this technique in an expert case study on clinical cohort data alongside two additional case examples from nutrition and ecology.

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《IEEE transactions on visualization and computer graphics》 |2021年第6期|2908-2922|共15页
作者
Laura Garrison; Juliane Muller; Stefanie SchreiberSteffen Oeltze-JafraHelwig HauserStefan Bruckner;
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作者单位

Department of Neurology, Otto von Guericke University Magdeburg, Magdeburg, Germany;

Department of Neurology, Center for Behavioral Brain Sciences, Otto von Guericke University Magdeburg, Magdeburg, Germany;

Department of Informatics & Mohn Medical Imaging and Visualization Centre, Department of Radiology, Haukeland University Hospital, University of Bergen, Bergen, Norway;

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原文格式 PDF
正文语种英语
中图分类模式识别与装置;
关键词
Visualization; Dimensionality reduction; Data visualization; Principal component analysis; Correlation; Tools; Neurology; interactive visual analysis; visual analytics; parallel coordinates;

DimLift: Interactive Hierarchical Data Exploration Through Dimensional Bundling

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