Extracting and Re-Using Design Patterns from Genetic Algorithms using Case-Based Reasoning Eduardo Islas P´ erez Instituto de Investigaciones El´ ectricas Av. Reforma # 113 Col. Palmira 62490 Temixco, Morelos, MEXICO eislas@axp18.iie.org.mx Carlos A. Coello Coello CINVESTAV-IPN Depto. de Ingenier´ ıa El´ ectrica Secci´ on de Computaci ´ on Av. Instituto Polit´ ecnico Nacional No. 2508 Col. San Pedro Zacatenco M´ exico, D. F. 07300, MEXICO ccoello@cs.cinvestav.mx Arturo Hern´ andez Aguirre Centro de Investigaci´ on en Matem´ aticas ´ Area Computaci´ on Callej´ on Jalisco s/n Mineral de Valenciana Guanajuato, Guanajuato 36240, MEXICO artha@cimat.mx June 17, 2003 Abstract This paper proposes a scheme in which case-based reasoning techniques are employed to extract design patterns from a genetic algorithm used to optimize Corresponding author 1