Teaching:TUW - UE InfoVis WS 2010/11 - Gruppe 05 - Aufgabe 2
Pargnostics: Screen-Space Metrics for Parallel Coordinates
Introduction
Visualization still takes place in a space with a limited number of discrete pixels. The result of this often are over-plotting, clutter and other things. Most of the time this structures are avoided. But sometimes this artifacts can be useful, because they might point out interesting structures in the data.
Metrics
Pixel-Space Histograms
- One-Dimensional Axis Histogram
- One-Dimensional Distance Histogram
- Two-Dimensional Axis Pair Histogram
Metrics ...
- Number of Line Crossings
- Angles of Crossing
- Parallelism
- Mutual Information
- Convergence, Divergence
- Over-plotting
- Pixel-based Entropy
Dimension Order Optimization
Conclusion
References
[Dasgupta and Kosara, 2010] Aritra Dasgupta and Robert Kosara. Pargnostics: Screen-Space Metrics for Parallel Coordinates. IEEE Transactions on Visualization and Computer Graphics, 16(6):1017-1026, November/December 2010