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. 2008 Jul 17;1:3. doi: 10.1186/1756-0381-1-3

Figure 1.

Figure 1

A Typical Feed-Forward NN. A feed-forward neural network with one input layer consisting of eight nodes (Xi), two hidden layers with four and two nodes respectively (Σ), and one output layer (O). The connections between layers have associated connection strengths or weights (ai).