Bjarne Foss (Bjarne.Foss@itk.ntnu.no)
Fri, 03 Sep 1999 10:25:01 +0200
Gjesteforelesning torsdag 9/9 kl.14.15-16.00 i B-343 (elektroblokk B), NTNU.
Tittel: Fundamentally-Guided Empirical Modeling
Foreleser: Dr. Ron Pearson, ETH Zurich
Dr. Ron Pearson er forsker ved ETH i Zurich og har tidligere lang erfaring
fra DuPont, USA.
Vel møtt!
Vennlig hilsen
Bjarne Foss
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Ekstrakt av forelsening:
Fundamentally-Guided Empirical Modeling
Many authors have noted that "pure empirical modeling"
is an essentially ill-posed problem. Conversely, fundamental
models tend to be extremely complex, making them unsuitable
for many model-based control problems. This talk begins
with a brief discussion of both of these problems, making
the case for "intermediate" or "gray-box" approaches and
the rest of the talk is devoted to discussions of some of
the key issues that must be addressed in turning this
appealing idea into a practical modeling methodology.
An extremely important issue is that of initial model
structure selection and much of the talk will be concerned
with various aspects of this problem: what model structures
are available for nonlinear empirical modeling? what are
the consequences of different choices, particularly in
terms of the possible qualitative behavior of the resulting
model? how can fundamental knowledge of qualitative process
behavior be used in selecting good empirical model structures
and avoiding bad ones? In addition, questions of input
sequence design for model identification, parameter estimation,
and model validation/invalidation/refinement will also be
discussed.
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