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Self-Organizing Maps for imprecise data
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DOI：10.1016/j.fss.2013.09.011.png)
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Abstract
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Self-Organizing Maps (SOMs) consist of a set of neurons arranged in such a way that there are neighbourhood relationships among neurons. Following an unsupervised learning procedure, the input space is divided into regions with common nearest neuron (vector quantization), allowing clustering of the input vectors. In this paper, we propose an extension of the SOMs for data imprecisely observed (Self-Organizing Maps for imprecise data, SOMs-ID). The learning algorithm is based on two distances for imprecise data. In order to illustrate the main features and to compare the performances of the proposed method, we provide a simulation study and different substantive applications. (C) 2013 Elsevier B.V. All rights reserved.
Keywords:
Imprecise data
Fuzziness
Distance measures for imprecise data
SOMs for imprecise data
Vector quantization for imprecise data
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