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KMID : 0357520070300040419
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Journal of Radiological Science and Technology
2007 Volume.30 No. 4 p.419 ~ p.426
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Input Pattern Vector Extraction and Pattern Recognition of Taste using fMRI
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Lee Sun-Yeob
Lee Yong-Gu
KimKi-Dong
Kim Ki-Dong
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Abstract
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In this paper, the input pattern vectors are extracted and the learning algorithms is designed to recognize taste(bitter, sweet, sour and salty) pattern vectors. The signal intensity of taste are used to compose the input pattern vectors. The SOM(Self Organizing Maps) algorithm for taste pattern recognition is used to learn initial reference vectors and the ot-star learning algorithm is used to determine the class of the output neurons of the sunclass layer. The weights of the proposed algorithm which is between the input layer and the subclass layer can be learned to determine initial reference vectors by using SOM algorithm and to learn reference vectors by using LVQ(Learning Vector Quantization) algorithm. The pattern vectors are classified into subclasses by neurons in the subclass layer, and the weights between subclass layer and output layer are learned to classify the classified subclass, which is enclosed a class. To classify the pattern vectors, the proposed algorithm is simulated with ones of the conventional LVQ, and it is confirmed that the proposed learning method is more successful classification than the conventional LVQ.
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KEYWORD
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Taste activate, Pattern vector extraction, LVQ, Pattern classification
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