An HMM for detecting spam mail. - José Gordillo; Eduardo Conde (Expert Syst. Appl., 2007)

Locating a semi-obnoxious covering facility with repelling polygonal regions. - Frank Plastria; José Gordillo; Emilio Carrizosa (Discret. Appl. Math., 2013)

Multi-instance classification through spherical separation and VNS. - Frank Plastria; Emilio Carrizosa; José Gordillo (Comput. Oper. Res., 2014)