In the nonlinear
systems, the pre-knowledge about the exact functional structure between inputs
and outputs is mostly either unavailable or insufficient. In this case, the
artificial neural networks (ANNs) are useful tools to estimate this functional
structure. However, the
traditional ANNs with the sum squared error suffer from the approximation and
estimation errors in the high dimensional and excessive nonlinear cases. In
this context, Bayesian neural networks (BNNs) provide a natural way to
alleviate these issues by means of penalizing the excessive complex models.
Thus, this approach allows estimating more reliable and robust models in the
regression analysis, time series, pattern recognition problems etc. This paper
presents a Bayesian learning approach based on Gaussian approximation which
estimates the parameters and hyperparameters in the BNNs efficiently. In the
application part, the proposed approach is compared with the traditional ANNs
in terms of their estimation and prediction performances over an artificial
data set.
Bayesian Neural Networks Bayesian Learning Gaussian Approach Fixed Hyperparameters Gradient based Algorithms
Primary Language | English |
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Subjects | Mathematical Sciences |
Journal Section | Articles |
Authors | |
Publication Date | December 29, 2017 |
Submission Date | October 27, 2017 |
Acceptance Date | December 25, 2017 |
Published in Issue | Year 2017 Volume: 01 Issue: 2 |
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