“…The neuronal networks as a particular case of intelligent systems [Hertz et al, 1991;Rich & Knight, 1991;Setiono & Liu, 1996;Yao & Liu, 1998], have given promising results in fields like: modeling, analysis of time series, patterns recognition among others [Dow & Sietsma, 1991;Gallant, 1993;Back et al, 1998]. In the field of the geosciences this type of systems has contributed with conventional and no conventional developments of interpretation and processing [Heggland et al, 1999a;1999b;An & Moon, 1993;Johnston, 1993;Wang & Huang, 1993;Ping, 1994;Cai, 1994;Huang & Williamson, 1994;Zhang et al, 1995a;1995b, Sun et al, 2001Deker et al, 2001;Chengdang, 1993]. One open issue in high resolution inversion is that there is no way to obtain from seismic data the top and the base of a geologic formation with a thickness under 15 meters (approximately).…”