โ Scribed by P.E. An; C.J. Harris
No coin nor oath required. For personal study only.
Based on the fast learning convergence properties of networks with local generalisation (compared to multi-layered networks with global learning interferrence and possible multi-minima), this paper reviews three locally generalizing neural networks: Radial Basis Functions (RBF), B-Splines (BSPL), and Cerebellar Model Articulated Controller (CMAC). In specific, the learning performance of the CMAC network was evaluated using a non-linear time series with four inputs and two outputs, and compared to those using RBF (Chen, Billings (1991)) and B-Splines ( Brown, Harris (1991)). In relation to real-time control tasks, either the plant derivative (or jacobian) or an approximated version ofthe jacobian is required if the controller is adjusted based on an instantaneous tracking error (instead of the control error). This way the controller becomes sensitive to the estimated plant jacobian. This paper also studies the ability of the CMAC network to approximate a plant made of multi-sinusoids, and estimate the plant jacobian based on the approximated plant model.
๐ SIMILAR VOLUMES
To bridge the gap between academic research and actual operation, we propose an intelligent control system for reservoir operation. The methodology includes two major processes, the knowledge acquired and implemented, and the inference system. In this study, a genetic algorithm (GA) and a fuzzy rule