# Artificial Neural Networks

(Source: Wikipedia, May 2008)

An artificial neural network (ANN),
often just called a "neural network" (NN), is a mathematical model or
computational model based on biological neural networks. It consists of
an interconnected group of artificial neurons and processes information
using a connectionist approach to computation. In most cases an ANN is
an adaptive system that changes its structure based on external or
internal information that flows through the network during the learning
phase.

In more practical terms neural
networks are non-linear statistical data modeling tools. They can be
used to model complex relationships between inputs and outputs or to
find patterns in data.

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