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Design of Digit Recognition System Realized with the Aid of Fuzzy RBFNNs and Incremental-PCA
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 Title & Authors
Design of Digit Recognition System Realized with the Aid of Fuzzy RBFNNs and Incremental-PCA
Kim, Bong-Youn; Oh, Sung-Kwun; Kim, Jin-Yul;
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In this study, we introduce a design of Fuzzy RBFNNs-based digit recognition system using the incremental-PCA in order to recognize the handwritten digits. The Principal Component Analysis (PCA) is a widely-adopted dimensional reduction algorithm, but it needs high computing overhead for feature extraction in case of using high dimensional images or a large amount of training data. To alleviate such problem, the incremental-PCA is proposed for the computationally efficient processing as well as the incremental learning of high dimensional data in the feature extraction stage. The architecture of Fuzzy Radial Basis Function Neural Networks (RBFNN) consists of three functional modules such as condition, conclusion, and inference part. In the condition part, the input space is partitioned with the use of fuzzy clustering realized by means of the Fuzzy C-Means (FCM) algorithm. Also, it is used instead of gaussian function to consider the characteristic of input data. In the conclusion part, connection weights are used as the extended diverse types in polynomial expression such as constant, linear, quadratic and modified quadratic. Experimental results conducted on the benchmarking MNIST handwritten digit database demonstrate the effectiveness and efficiency of the proposed digit recognition system when compared with other studies.
Digit Recognition;Fuzzy RBFNNs Pattern Classifier;Incremental-PCA(IPCA);Fuzzy C-Means(FCM);Least Square Estimation(LSE);
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