Visualizing nD point clouds as topological landscape profiles to guide local data analysis

IEEE Transactions on Visualization and Computer Graphics
Patrick OesterlingGerik Scheuermann

Abstract

Analyzing high-dimensional point clouds is a classical challenge in visual analytics. Traditional techniques, such as projections or axis-based techniques, suffer from projection artifacts, occlusion, and visual complexity. We propose to split data analysis into two parts to address these shortcomings. First, a structural overview phase abstracts data by its density distribution. This phase performs topological analysis to support accurate and nonoverlapping presentation of the high-dimensional cluster structure as a topological landscape profile. Utilizing a landscape metaphor, it presents clusters and their nesting as hills whose height, width, and shape reflect cluster coherence, size, and stability, respectively. A second local analysis phase utilizes this global structural knowledge to select individual clusters or point sets for further, localized data analysis. Focusing on structural entities significantly reduces visual clutter in established geometric visualizations and permits a clearer, more thorough data analysis. This analysis complements the global topological perspective and enables the user to study subspaces or geometric properties, such as shape.

References

Dec 23, 2000·Science·J B TenenbaumJ C Langford
Nov 4, 2006·IEEE Transactions on Visualization and Computer Graphics·Matej Novotný, Helwig Hauser
Oct 31, 2007·IEEE Transactions on Visualization and Computer Graphics·Wesley WillettManeesh Agrawala
Oct 31, 2007·IEEE Transactions on Visualization and Computer Graphics·Gunther WeberValerio Pascucci
Oct 17, 2009·IEEE Transactions on Visualization and Computer Graphics·Shigeo TakahashiMasato Okada
Oct 27, 2010·IEEE Transactions on Visualization and Computer Graphics·Nicholas KongManeesh Agrawala
Oct 27, 2010·IEEE Transactions on Visualization and Computer Graphics·Samuel GerberRoss Whitaker
Feb 2, 2011·IEEE Transactions on Visualization and Computer Graphics·P OesterlingG Heyer

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Citations

Jan 24, 2017·IEEE Transactions on Visualization and Computer Graphics·Shusen LiuValerio Pascucci

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