1. a School of Industrial Engineering, Pontificia Universidad Católica de Valparaíso , Avenida Brasil 2241 , Valparaíso , Chile
2. b Quality and Manufacturing Center, Tecnologico de Monterrey, Eugenio Garza Sada 2501 , 64849 Monterrey , N.L. , México
3. c School of Computing, Informatics and Decision Systems Engineering, Arizona State University , PO Box 875906, Tempe , Arizona 85287 , USA