An artificial neural network is a “computational mechanism able to acquire, represent, and compute a mapping from one multivariate space of information to another, given a set of data representing that mapping”. The back-propagation training algorithm is the most frequently used neural network method and is also used in this study. The back-propagation
The function f is usually a non-linear sigmoid function that is applied to the weighted sum of inputs before the signal propagates to the next layer. One advantage of a sigmoid function is that its derivative can be expressed in terms of the function itself:
training algorithm is trained using a set of examples of
associated input and output values. The purpose of an artificial