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Volume Rendering Using Principal Component Analysis
(The Eurographics Association, 2016)
We investigate the use of Principal Component Analysis (PCA) for image-based volume rendering. We compute an eigenspace using training images, pre-rendered using a standard raycaster, from a spherically distributed range ...
Hierarchical Clustering with Multiple-Height Branch-Cut Applied to Short Time-Series Gene Expression Data
(The Eurographics Association, 2016)
Rigid adherence to pre-specified thresholds and static graphical representations can lead to incorrect decisions on merging of clusters. As an alternative to existing automated or semi-automated methods, we developed a ...
Features vs Prototypes: Amplifying Cognition with Common Data Graphics
(The Eurographics Association, 2016)
The most common and important data visualizations, such as barcharts or scatterplots are typically feature-based. In this paper we question whether feature-based representations are favorable from the cognition point of ...
Geometry-Aware Visualization of Performance Data
(The Eurographics Association, 2016)
Phenomena in the performance behaviour of high-performance computing (HPC) applications can stem from the HPC system itself, from the application's code, but also from the simulation domain. In order to analyse the latter ...
InVITe - Towards Intuitive Visualization of Iterations over Text
(The Eurographics Association, 2016)
With InVITe, we are working towards intuitive visualization to support review of iterative modifications on text documents. In order to accomplish this, we perform simple matching of text snippets between the two versions ...
Interactive Exploration of Student Generated Content presented in Blogs
(The Eurographics Association, 2016)
Nowadays blogs are regarded as tools for communication as well as an important source for spreading information in almost every subject. In recent years, school teachers have started to take advantage of this technology ...
Tracking Space-Filling Features by Two-Step Optimization
(The Eurographics Association, 2016)
We present a novel approach for tracking space-filling features, i.e., a set of features covering the entire domain. The assignment between successive time steps is determined by a two-step, global optimization scheme. ...
Visual Analytics for Fraud Detection: Focusing on Profile Analysis
(The Eurographics Association, 2016)
Financial institutions are always interested in ensuring security and quality for their customers. Banks, for instance, need to identify and avoid harmful transactions. In order to detect fraudulent operations, data mining ...
Visualization-Aware Color Design
(The Eurographics Association, 2016)
Color encoding design currently focuses on the colors themselves: visualization designers choose sets of colors that work well in isolation. However, the effectiveness of a color encoding depends on properties of the ...
Query by Visual Words: Visual Search for Scatter Plot Visualizations
(The Eurographics Association, 2016)
Finding interesting views in large collections of data visualizations, e.g., scatter plots, is challenging. Recently, ranking views based on heuristic quality measures has been proposed. However, quality measures may fail ...