Enhancing the top signal at Tevatron using Neural Nets
  We show that Neural Nets can be useful for top analysis at Tevatron. The main features of $t\bar t$ and background events on a mixed sample are projected in a single output, which controls the efficiency and purity of the $t\bar t$ signal. 
Ll. Ametller, Ll. Garrido and P. Talavera