Bayesian Learning for Neural Networks
Bayesian Learning for Neural Networks
Sparse bayesian learning and the relevance vector machine
The Journal of Machine Learning Research
Sparse Bayesian modeling with adaptive kernel learning
IEEE Transactions on Neural Networks
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The multilayer perceptron (MLP) is a well established neural network model for supervised learning problems. Furthermore, it is well known that its performance for a given problem depends crucially on appropriately selecting the MLP architecture, which is typically achieved using cross-validation. In this work, we propose an incremental Bayesian methodology to address the important problem of automatic determination of the number of hidden units in MLPs with one hidden layer. The proposed methodology treats the one-hidden layer MLP as a linear model consisting of a weighted combination of basis functions (hidden units). Then an incremental method for sparse Bayesian learning of linear models is employed that effectively adjusts not only the combination weights, but also the parameters of the hidden units. Experimental results for several well-known classification data sets demonstrate that the proposed methodology successfully identifies optimal MLP architectures in terms of generalization error.