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Issue No.01 - January/February (2010 vol.30)
pp: 40-49
Heike Jänicke , Swansea University
Gerik Scheuermann , University of Leipzig
ABSTRACT
Unsteady scientific data is one of the top challenges in visualization, because a huge amount of information must be displayed. ϵ-machines are an information-theoretic concept; they compress the dynamics in the data set to a finite-state machine, in which nodes represent local flow patterns and edges represent transitions between them. Several enhancements to the fundamental ϵ-machine representation can help users identify interesting time intervals, analyze the evolution of unusual local dynamics, and track features over time. Automatically abstracting information from the original data is a first step toward knowledge-assisted visualization. Successive findings from analysis can help provide subsequent users with knowledge gained in earlier research, resulting in a knowledge-assisted system for the analysis of unsteady-flow features based on information theory. This article is part of a special issue on knowledge-assisted visualization.
INDEX TERMS
scientific visualization, information theory, flow features, time-dependent data, computer graphics, graphics and multimedia
CITATION
Heike Jänicke, Gerik Scheuermann, "Visual Analysis of Flow Features Using Information Theory", IEEE Computer Graphics and Applications, vol.30, no. 1, pp. 40-49, January/February 2010, doi:10.1109/MCG.2010.17
REFERENCES
1. E. Roeckner et al., The Atmospheric General Circulation Model ECHAM 5, Part I: Model Description, tech. report 349, Max Planck Inst. for Meteorology, 2003.
2. D. Salomon, Data Compression: The Complete Reference, Springer, 2000.
3. E. Gansner and Y. Koren, "Improved Circular Layouts," Graph Drawing, LNCS 4372, Springer, 2007, pp. 386–398.
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