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Adaptive neural network classifier for extracted invariants of handwriten digits

Keng, L. H. and Shamsuddin, Siti Mariyam (2004) Adaptive neural network classifier for extracted invariants of handwriten digits. Journal of ICT, 3 (1). pp. 1-17. ISSN 1675-414X

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Official URL: http://jict.uum.edu.my

Abstract

We propose an adaptive activation function of neural network classifier for isolated handwritten digits that undergo basic transformations. The utilized network is a backpropagation network with sigmoid and arctangent activation functions. The performance of network with both activation functions is compared. The results show that the network applying an adaptive activation function between layers converged much faster compared to non-adaptive activation functions with 50% iterations reduction. In this study, we also present experimental results of feature extraction between Zernike and d-geometric for better feature representations. Results show that Zernike features are better at representing isolated handwritten digits compared to d-geometric features with an accuracy up to 87%.

Item Type: Article
Uncontrolled Keywords: Handwritten digit, Zernike moments, adaptive activation function
Subjects: Q Science > QA Mathematics > QA75 Electronic computers. Computer science
Divisions: UNSPECIFIED
Depositing User: Mrs. Norazmilah Yaakub
Date Deposited: 05 Sep 2010 06:53
Last Modified: 05 Sep 2010 06:53
URI: http://repo.uum.edu.my/id/eprint/1039

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