Claus Hillermeier

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Guided by the neurobiological principles of self-organization and population coding, we develop a simple, neural, one-layer model for auto-association. Its core is a feature map endowed with self-organized lateral connections. Input patterns are coded by small spots of active neurons. The time evolution of neural activity then realizes an auto-association(More)
Of 27 patients with cystic fibrosis, 17 had levels of alpha-tocopherol more than 2 SD below the mean. Patients were randomly given either a water-miscible form of vitamin E or a fat-soluble form for 6 months. Either form was effective in achieving normal serum levels; the fat-soluble supplement has a significant cost advantage.
This paper presents a fault tolerant control (FTC)-architecture for trajectory tracking, where generalized actuator faults are online diagnosed and compensated for by the control system. Employing least-squares derivative estimators for identifying the faults inserts time-delays into the control loop. When a reference trajectory is to be tracked, the closed(More)
Nonlinear associative memories as realized, e.g., by Hopfield nets are characterized by attractor-type dynamics. When fed with a starting pattern, they converge to exactly one of the stored patterns which is supposed to be most similar. These systems cannot render hypotheses of classification, i.e., render several possible answers to a given classification(More)
In this article, we revise a well-known derivative estimation scheme which is based on a least squared error polynomial approximation of a noisy measurement signal. Our contribution is to determine the influence of the estimation parameters onto the covariance matrix and the temporal delay of the estimation result. Also, it is shown that the least squares(More)
Zusammenfassung In diesem Beitrag wird eine Architektur zur fehlertoleranten Regelung vorgestellt, bei der aktuatorähnliche Fehler online diagnostiziert und durch den Regler kompensiert werden. Die Verwendung von Least-SquaresAbleitungsschätzern zur Fehleridentifikation führt Totzeiten in den Regelkreis ein. Im Rahmen einer Stabilitätsanalyse werden(More)
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