Gesellschaft für Informatik e.V.

Lecture Notes in Informatics


Informatik 2014 P-232, 2449-2460 (2014).

Gesellschaft für Informatik, Bonn
2014


Copyright © Gesellschaft für Informatik, Bonn

Contents

Analysis of crash simulation data using spectral embedding with histogram distances

Anna-Luisa Schwartz

Abstract


Finite Element simulation of crash tests in the car industry generates huge amounts of high-dimensional numerical data. Methods from Machine Learning, especially from Dimensionality Reduction, can assist in analyzing and evaluating this data efficiently. Here we present a method that performs a two step dimensionality reduction in a novel manner: First the simulation data is represented as (normalized) histograms, then embedded into a low dimensional space using histogram distances and the nonlinear method of Spectral Embedding/Diffusion Maps, thus enabling a much easier data analysis. In particular, this method solves the problem of comparing simulation data with small changes in the Finite Element grids due to variations of geometry or unequally fine grid structures.


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Gesellschaft für Informatik, Bonn
ISBN 978-3-88579-626-8


Last changed 18.11.2014 21:19:36