Explaining Neighborhood Preservation for Multidimensional Projections (Unknown language)

in Computer Graphics and Visual Computing (CGVC) ; 7-14
Computer Graphics and Visual Computing (CGVC)

Dimensionality reduction techniques are the tools of choice for exploring high-dimensional datasets by means of low-dimensional projections. However, even state-of-the-art projection methods fail, up to various degrees, in perfectly preserving the structure of the data, expressed in terms of inter-point distances and point neighborhoods. To support better interpretation of a projection, we propose several metrics for quantifying errors related to neighborhood preservation. Next, we propose a number of visualizations that allow users to explore and explain the quality of neighborhood preservation at different scales, captured by the aforementioned error metrics.We demonstrate our exploratory views on three real-world datasets and two state-of-the-art multidimensional projection techniques.

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Table of contents conference proceedings

The table of contents of the conference proceedings is generated automatically, so it can be incomplete, although all articles are available in the TIB.

1
Multivariate Hybrid Visualisation of Ornithological Sensor Data
Roberts, Richard C. / Laramee, Robert S. / Jones, Mark W. | 2015
7
Explaining Neighborhood Preservation for Multidimensional Projections
Martins, Rafael Messias / Minghim, Rosane / Telea, Alexandru C. | 2015
27
GKS-94 to SVG: Some Reflections on the Evolution of Standards for 2D Graphics
Duce, David A. / Hopgood, F.R.A. | 2015
35
Tiled Projection Onto Deforming Screens
Kim, Hyosun / Schinko, Christoph / Havemann, Sven / Redi, Ivan / Redi, Andrea / Fellner, Dieter W. | 2015
55
Visibility-Weighted Saliency for Volume Visualization
Luo, Shengzhou / Dingliana, John | 2015
69
Natural Phenomena as Metaphors for Visualization of Trend Data in Interactive Software Maps
Würfel, Hannes / Trapp, Matthias / Limberger, Daniel / Döllner, Jürgen | 2015
77
Extending the Scaffold Hunter Visualization Toolkit with Interactive Heatmaps
Sturm, Werner / Schäfer, Till / Schreck, Tobias / Holzinger, Andreas / Ullrich, Torsten | 2015
87
Using Sketching to Control Heterogeneous Groups
Allen, Thomas / Parvanov, Aleksandar / Knight, Sam / Maddock, Steve | 2015

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