Artificial Intelligence and Operation Research. * Linear Programming - lp_solve * Constraint Programming - Mozart/Oz - Gecode * Stochastic Search Publications: * Carlos Castro, Christian Figueroa, Rafael Meneses y Eric Monfroy, "An Approach for Dynamic Split Strategies in Constraint Solving", IV Mexican International Conference on Artificial Inteligence 2005, Mexico. * Carlos Castro, Christian Figueroa, Rafael Meneses y Eric Monfroy, "Constraint Solving Using Dynamic Variable and Value Selection", XXXI Conferencia Latinoamericana de Informática 2005, Colombia. * Carlos Castro y Rafael Meneses, "A Scheme of Integration Between Constraint Programming and Local Search}", Optima 2005, Chile.