The interpolation of PESs of the OH molecule and water- formaldehyde dimer The neural network has given the accurate eigenvalues and the eigenvectors of an unknown matrix The correct eigenvalue spectrum could be predicted at the crossing The artificial neural network can also be used to compute accurate local structures of liquids during a simulation

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Back-propagation method
 Back-propagation method (BP) a supervised artificial neural network
 In BP, there are interconnected nodes.
 The information passes between these nodes in a feedforward mode.
 Each individual connection between nodes has a particular weight.
 The alteration of the weights and network framework that allows a BP to learn
functions and relationships