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Complex Optimization of a Recurrent Neural Network

by Travis Wiens

 

31 Jul 2008 (Updated 17 Jul 2009)

Shows how to use the complex method to optimize a black-box neural network model of a load-sensing h

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Description

This package includes files for modelling nonlinear dynamic systems using a recurrent generalized neural network. The learning scheme uses the complex method of nonlinear nonderivative optimization, thereby avoiding the problems of computing the derivative of an infinite impulse response filter such as a recurrent neural network.

This package includes files for modelling nonlinear dynamic systems using a recurrent generalized neural network. The learning scheme uses the complex method of nonlinear nonderivative optimization, thereby avoiding the problems of computing the derivative of an infinite impulse response filter such as a recurrent neural network.

The example given is the modelling of a load-sensing hydraulic pump. The model output is the pump flow, as a response to inputs of pump pressure and the pressure in the control piston. Real experimental data is included.

For further details, refer to:
T. Wiens, R. Burton, G. Schoenau, D. Bitner, "Recursive Generalized Neural Networks (RGNN) for the Modeling of a Load Sensing Pump," Bath Symposium on Power Transmission and Motion Control, Sept 2008.
http://homepage.usask.ca/~tkw954/
http://blog.nutaksas.com

Note that this package requires the "Complex Method of Optimization" package in your path, available from http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=18342&objectType=FILE

MATLAB release MATLAB 7.4 (R2007a)
Other requirements Complex Method of Optimization http://www.mathworks.com/matlabcentral/fileexchange/loadFile.do?objectId=18342&objectType=FILE
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Comments and Ratings (3)
17 Aug 2009 Erdal Bizkevelci  
08 Oct 2009 Peter Ingram  
01 Nov 2009 Travis Wiens

Note that the "complex method" package is now available at http://www.mathworks.com/matlabcentral/fileexchange/25428-complex-method-of-optimization

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Updates
04 Aug 2008

Changed to not use mex file by default.

17 Jul 2009

Removed GPL per Mathworks' requirements.

Tag Activity for this File
Tag Applied By Date/Time
fuzzy logic Travis Wiens 22 Oct 2008 10:12:48
neural networks Travis Wiens 22 Oct 2008 10:12:48
complex Travis Wiens 22 Oct 2008 10:12:48
simplex Travis Wiens 22 Oct 2008 10:12:48
modelling Travis Wiens 22 Oct 2008 10:12:48
recurrent Travis Wiens 22 Oct 2008 10:12:48
dynamic Travis Wiens 22 Oct 2008 10:12:48
neural network Travis Wiens 22 Oct 2008 10:12:48
fuzzy logic Steve 28 Oct 2009 07:47:19

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