BibTeX
@INCOLLECTION{
Bischof2002ACS,
author = "Christian H. Bischof and H. Martin B{\"u}cker and an Mey, Dieter",
title = "A Case Study of Computational Differentiation Applied to Neutron Scattering",
pages = "69--74",
chapter = "6",
crossref = "Corliss2002ADo",
booktitle = "Automatic Differentiation of Algorithms: From Simulation to Optimization",
year = "2002",
editor = "George Corliss and Christ{\`e}le Faure and Andreas Griewank and Laurent
Hasco{\"e}t and Uwe Naumann",
series = "Computer and Information Science",
publisher = "Springer",
address = "New York, NY",
abstract = "In a neutron scattering application, an unconstrained nonlinear minimization
problem is used for the fitting of model parameters to experimental data. Automatic differentiation
enables, in a completely mechanical fashion, algorithmic changes by switching from a quasi-Newton
method, where first order derivatives are approximated by finite differences, to a modified
Gauss--Newton method using exact first order derivatives. Compared to the original code, the code
generated by this black box approach produces reliable results rather than results of dubious
quality. This approach also is faster in terms of execution time. Its performance is improved
further by replacing the most time-consuming subroutine involved in the derivative evaluation by a
surprisingly simple, hand-coded implementation of the corresponding analytic expression.",
referred = "[Klein2002DMf].",
ad_area = "Chemistry",
ad_tools = "ADIFOR",
ad_theotech = "Integration of Analytic Derivatives"
}
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