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Data Driven Computing with noisy material data sets

delete2017-11-01
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OA
AI
T
Trenton Kirchdoerfer
M
M. Ortíz *
DOI:10.1016/j.cma.2017.07.039delete
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摘要

摘要

En 中文
We formulate a Data Driven Computing paradigm, termed max-ent Data Driven Computing, that generalizes distance-minimizing Data Driven Computing and is robust with respect to outliers. Robustness is achieved by means of clustering analysis. Specifically, we assign data points a variable relevance depending on distance to the solution and on maximum-entropy estimation. The resulting scheme consists of the minimization of a suitably-defined free energy over phase space subject to compatibility and equilibrium constraints. Distance-minimizing Data Driven schemes are recovered in the limit of zero temperature. We present selected numerical tests that establish the convergence properties of the max-ent Data Driven solvers and solutions. (C) 2017 Elsevier B.V. All rights reserved.
Keyword:
Data science
Big data
Approximation theory
Scientific computing
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期刊

Computer Methods in Applied Mechanics and Engineering 封面图
Computer Methods in Applied Mechanics and Engineering
IF:
7.3
论文数:
1.3W
被引数:
5.6W

机构

C
California Institute of Technology
学者数:
2.9W
论文数: 2.5W
被引数: 4.9W
引用论文

引用论文

Application of the virtual fields method to mechanical characterization of elastomeric materials
err2009-02-01
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errPromma, N.; Raka, B.; Grediac, M.; Toussaint, E.; Le Cam, J-B.; Balandraud, X.; Hild, F.
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