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Now showing items 11-20 of 362
Graph Drawing by Subspace Optimization
(The Eurographics Association, 2004)
We show a novel approach for accelerating the computation of graph drawing algorithms. The method is based on the notion that we can find a subspace with a relatively low dimensionality that captures the "nice" layouts of ...
Manual Clustering Refinement using Interaction with Blobs
(The Eurographics Association, 2007)
The huge amount of different automatic clustering methods emphasizes one thing: there is no optimal clustering method for all possible cases. In certain application domains, like genomics and natural language processing, ...
Collaborative Brushing and Linking for Co-located Visual Analytics of Document Collections
(The Eurographics Association and Blackwell Publishing Ltd., 2009)
Many real-world analysis tasks can benefit from the combined efforts of a group of people. Past research has shown that to design visualizations for collaborative visual analytics tasks, we need to support both individual ...
A Granular Three Dimensional Multiresolution Transform
(The Eurographics Association, 2006)
We propose a three dimensional multi-resolution scheme to represent volumetric data in resolutions which are powers of two, resolving the rigidity of the commonly used separable Cartesian multi-resolution schemes in 3D ...
Results of a User Study on 2D Hurricane Visualization
(The Eurographics Association and Blackwell Publishing Ltd., 2008)
We present the results from a user study looking at the ability of observers to mentally integrate wind direction and magnitude over a vector field. The data set chosen for the study is an MM5 (PSU/NCAR Mesoscale Model) ...
Visualizing Genome Expression and Regulatory Network Dynamics in Genomic and Metabolic Context
(The Eurographics Association and Blackwell Publishing Ltd., 2008)
DNA microarrays are used to measure the expression levels of thousands of genes simultaneously. In a time series experiment, the gene expressions are measured as a function of time. We present an application for integrated ...
Feature-Preserving Volume Filtering
(The Eurographics Association, 2002)
In this paper a feature-preserving volume filtering method is presented. The basic idea is to minimize a threecomponent global error function penalizing the density and gradient errors and the curvature of the unknown ...
Adding a scalar value to texture-based vector field representations by local contrast analysis
(The Eurographics Association, 2002)
Several algorithms can effectively represent vector fields by texture-based representations, visualizing at most all information on the field: direction, orientation, and local magnitude. An open problem still remains the ...
Dimensional Congruence for Interactive Visual Data Mining and Knowledge Discovery
(The Eurographics Association, 2007)
Many authors in the field of 3D human computer interaction have described the advantages of 3D user interfaces: Intuitive metaphors from daily life, immersive workspaces, virtual environments that closely resemble natural ...
Perspective Isosurface and Direct Volume Rendering for Virtual Endoscopy Applications
(The Eurographics Association, 2006)
Virtual endoscopy has proven to be a very powerful tool in endoscopic surgery. However, most virtual endoscopy systems are restricted to rendering isosurfaces or require segmentation in order to visualize additional objects ...