• Análisis de proximidades métrico usando búsqueda tabú 

      Villalobos Arias, Mario Alberto; Trejos Zelaya, Javier (2009-02-19)
      We apply tabu search (TS) in metric multidimensional scaling, obtaining good results comparable to those obtained with simulated annealing. A state in TS is a configuration of n points in a p dimensional space, and a ...
    • Aplicación de la búsqueda tabú en regresión no lineal 

      Villalobos Arias, Mario Alberto; Trejos Zelaya, Javier; de los Cobos Silva, Sergio Gerardo (2009-02-20)
      We implement the combinatorial optimization technique known as tabu search inthe parameter estimation problem in a given non linear model. For the generationof neighbors, the implementation is based on a discretization of ...
    • Portfolio Optimization Using Particle Swarms with Stripes 

      Villalobos Arias, Mario Alberto (2011-04-29)
      In this paper it is consider the Portfolio Optimization Problem developed by Markowitz [11]. The basic assumption is that the investor tries to maximize his/her profit and at the same time, wants to minimize the risk. This ...