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Semi-Empirical Modeling of Non-Linear Dynamic Systems through Identification of Operating Regimes and Local Models (1995) [7 citations — 0 self]

by Tor A. Johansen ,  Bjarne A. Foss
Neural Network Engineering in dynamic control systems
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Abstract:

. An off-line algorithm for semi-empirical modeling of nonlinear dynamic systems is presented. The model representation is based on the interpolation of a number of simple local models, where the validity of each local model is restricted to an operating regime, but where the local models yield a complete global model when interpolated. The input to the algorithm is a sequence of empirical data and a set of candidate local model structures. The algorithm searches for an optimal decomposition into operating regimes, and local model structures. The method is illustrated using simulated and real data. The transparency of the resulting model and the flexibility with respect to incorporation of prior knowledge is discussed. 1 Introduction The problem of identifying a mathematical model of an unknown system from a sequence of empirical data is a fundamental one which arises in many branches of science and engineering. The complexity of solving such a problem depends on many factors, such as...

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