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| Paper: |
Topology-based Feature Definition and Analysis |
| Volume: |
444, 5th International Conference of Numerical Modeling of Space Plasma Flows (ASTRONUM 2010) |
| Page: |
292 |
| Authors: |
Weber, G. H.; Bremer, P.-T.; Gyulassy, A.; Pascucci, V. |
| Abstract: |
Defining high-level features, detecting them, tracking them and deriving quantities
based on them is an integral aspect of modern data analysis and visualization. In
combustion simulations, for example, burning regions, which are characterized by high
fuel-consumption, are a possible feature of interest. Detecting these regions makes
it possible to derive statistics about their size and track them over time. However,
features of interest in scientific simulations are extremely varied, making it
challenging to develop cross-domain feature definitions. Topology-based techniques
offer an extremely flexible means for general feature definitions and have proven
useful in a variety of scientific domains. This paper will provide a brief
introduction into topological structures like the contour tree and Morse-Smale
complex and show how to apply them to define features in different science domains
such as combustion. The overall goal is to provide an overview of these powerful
techniques and start a discussion how these techniques can aid in the analysis of
astrophysical simulations. |
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