The new generation of massively parallel mainframes enabled computational physics to make a quantum leap in complexity and size of numerical simulations, especially in the domain of astrophysics. The COAST project at ...
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The new generation of massively parallel mainframes enabled computational physics to make a quantum leap in complexity and size of numerical simulations, especially in the domain of astrophysics. The COAST project at CEA/IRFU at Saclay, started in 2005, involves astrophysicists and software engineers developing simulation codes in magneto-hydrodynamics and generic tools for data structuration and visualization. A dedicated software for visualizing the massive amounts of data produced by these simulation codes has been developed, the SDvision code, deployed in the framework of IDL Object Graphics. This code is suitable for interactive and immersive navigation for the analysis of 3D results and also for videos and stereoscopic movies productions for people at large. In this paper, we present the capabilities of the code SDvision and some applications in the domain of astrophysics simulations but also in the domain of fusion plasmas studies. In particular, two challenging simulations have been performed in the framework of the 'Grands Defis GENCI/CINES' on recent supercomputer Jade in CINES in 2010 and we present the visualization studies for such huge computation results.
Nowadays, embedded systems are widely used. It is extremely difficult to analyze safety issues in embedded systems, to relate the safety analysis results to the actual parts, and to identify these parts in the system....
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In the first place, we discuss the chaoticity and the Hurst expornent of the alpha rhythms with MEG data under some consciousness states at some positions on the brain. In the second place we present a new preliminary...
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ISBN:
(纸本)9781457701924
In the first place, we discuss the chaoticity and the Hurst expornent of the alpha rhythms with MEG data under some consciousness states at some positions on the brain. In the second place we present a new preliminary result for the Hurst exponents over extended frequency of rhythms with EEG data under some conditions with/without pleasant visible/auditory stimuli at a frontal position on the brain and discuss on them.
Online Analytical Processing (OLAP) was widely used to visualize complex data for efficient, interactive and meaningful analysis. Its power comes in visualizing huge operational data for interactive analysis. data min...
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作者:
Johnson, Chris R.
Institute University of Utah Salt Lake City UT United States
Modern high performance computers have speeds measured in teraflops and petabytes and handle data set sizes measured in terabytes and petabytes. Although these machines offer enormous potential for solving very large-...
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The proceedings contain 32 papers. The topics discussed include: the DSO feature based point cloud simplification;stabilizing marker-based visual tracking using markers with scattering materials and multiple cameras;b...
ISBN:
(纸本)9780769544847
The proceedings contain 32 papers. The topics discussed include: the DSO feature based point cloud simplification;stabilizing marker-based visual tracking using markers with scattering materials and multiple cameras;bit planes histogram equalization for tone mapping of high contrast images;visual resonance: fine art and 3D stereo pictoriality;an educational game for learning calculus;rational bi-cubic functions preserving 3D positive data;approximating Bézier rectangular surface using degree elevation;fast conic spline data fitting of noise-free data points;a novel practical approach for weight manipulation of conic splines;fast simplification of scanned 3D human body for animation;spur gear tooth design and transition curve as a spiral using cubic trigonometric Bezier function;highly parallel surface crack simulation;an improved online handwriting Thai character recognition;and local fisher discriminant analysis with maximum margin criterion for image recognition.
In a scenario where WWW has become more important every day, to have a clear and well organized web site has become one of the vital goals of enterprises and organizations on the Web. On enterprises' side goals ar...
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An efficient term mining method to build a general term network is presented for entity relation visualization and exploration. Terms from each document in the corpus are first identified. They are subjected to an ana...
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Preliminary dataanalysis can be used for studying data properties and variable dependence. data mining methods such as the Self-Organizing Map (SOM) can be effectively and easily applied even on large data sets. In t...
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ISBN:
(纸本)9780889868632
Preliminary dataanalysis can be used for studying data properties and variable dependence. data mining methods such as the Self-Organizing Map (SOM) can be effectively and easily applied even on large data sets. In this case study, process measurement data from normal operation of a circulating fluidized bed (CFB) boiler was tentatively analyzed by using correlation calculation for quantitative results and SOM for visualization. Results were compared and found to support each other. SOM efficiently visualizes the numerical results obtained by correlation analysis. The used methods enable the recognition and evaluation of dependence among variables in a computationally inexpensive way.
Traditionally, the visual analysis of hierarchies, respectively, trees, is conducted by focusing on one given hierarchy. However, in many research areas multiple, differing hierarchies need to be analyzed simultaneous...
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