ARTICLE SYNOPSIS ...Neural networks: A trading perspective by Carol H. Halquist & George F. Schmoll, III Neural networks and neural network simulators are used in signal processing, expert systems, modeling and forecasting. They may be used to solve complex, well-defined problems which may be impossible to solve algorithmically. They are primarily beneficial when the relation between input data and output data is not clearly understood, but a large number of sample sets of data are available. Neural networks are an alternative method used in signal processing, particularly in such fields as speech, vision and p...