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Artificial neural network of locally active units with cause-oriented parameter modification

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5 Author(s)
K. Makino ; Syst. & Software Eng. Lab., Toshiba Corp., Kawasaki, Japan ; T. Shimada ; R. Ichikawa ; M. Ono
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In this paper, a 3-layer neural network of locally active units is proposed. In the neural network, each constituent unit of a hidden layer is only activated by input vectors in a bounded domain of the vector space. This feature leads to additional learning, and also leads to knowing the architecture of the neural network and obtaining information suggestive of ways in which forecasting accuracy could be improved. We think that forecasting one-dimensional social quantity, for example, electric load or stock prices, makes the best use of the advantages of the proposed neural network, and we propose a method for detecting the causes of forecasting errors and improving the forecasting ability of the neural network. We examined the performance of the proposed neural network by applying it to daily peak electric load forecasting in summer. Comparing the forecasting result of the network with the conventional error back-propagation algorithm, the maximum error rate is clearly reduced. Carrying out the proposed method for detecting the causes of forecasting errors, forecasting errors are further reduced

Published in:

Fuzzy Systems, 1995. International Joint Conference of the Fourth IEEE International Conference on Fuzzy Systems and The Second International Fuzzy Engineering Symposium., Proceedings of 1995 IEEE Int  (Volume:4 )

Date of Conference:

20-24 Mar 1995