Discriminating signal from background using neural networks. Application   to top-quark search at the Fermilab Tevatron
  The application of Neural Networks in High Energy Physics to the separation of signal from background events is studied. A variety of problems usually encountered in this sort of analyses, from variable selection to systematic errors, are presented. The top--quark search is used as an example to illustrate the problems and proposed solutions. 
Ll. Ametller, Ll. Garrido, G. Stimpfl-Abele, P. Talavera and P. Yepes