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Using fuzzy logic to improve a clustering technique for function approximation
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DOI：10.1016/j.neucom.2006.06.017.png)
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摘要
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Clustering algorithms have been successfully applied in several disciplines. One of those applications is the initialization of radial basis function (RBF) centers composing a neural network, designed to solve functional approximation problems. The Clustering for Function Approximation (CFA) algorithm was presented as a new clustering technique that provides better results than other clustering algorithms that were traditionally used to initialize RBF centers. Even though CFA improves performance against other clustering algorithms, it has some flaws that can be improved. Within those flaws, it can be mentioned the way the partition of the input data is done, the complex migration process, the algorithm's speed, the existence of some parameters that have to be set in order to obtain good solutions, and the convergence is not guaranteed. In this paper, it is proposed an improved version of this algorithm that solves the problems that its predecessor have using fuzzy logic successfully. In the experiments section, it will be shown how the new algorithm performs better than its predecessor and how important is to make a correct initialization of the RBF centers to obtain small approximation errors. (c) 2007 Elsevier B.V. All rights reserved.
Keyword:
clustering
RBF
neural networks
function approximation
fuzzy
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期刊
IF:
6.5
论文数:
2.5W
被引数:
6.5W
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