Magnification Control in Self-Organizing Maps and Neural Gas
Neural Computation
Representation of functional data in neural networks
Neurocomputing
Self-organizing multilayer perceptron
IEEE Transactions on Neural Networks
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In this paper we present a method for functional principal component analysis based on the Oja-learning and neural gas vector quantizer. However, instead of the Euclidean inner product the Sobolev counterpart is applied, which takes the derivatives of the functional data into account and, therefore, uses information contained in the functional shape of the data into account. We investigate the theoretical foundations of the algorithm for convergence and stability and give exemplary applications.