• Title of article

    An improved initial basis for the Simplex algorithm

  • Author/Authors

    Hélcio Vieira Junior، نويسنده , , Marcos Pereira Estellita Lins، نويسنده ,

  • Issue Information
    ماهنامه با شماره پیاپی سال 2005
  • Pages
    11
  • From page
    1983
  • To page
    1993
  • Abstract
    A lot of research has been done to find a faster (polynomial) algorithm that can solve linear programming (LP) problems. The main branch of this research has been devoted to interior point methods (IPM). The IPM outperforms the Simplex method in large LPs. However, there is still much research being done in order to improve pivoting algorithms. In this paper, we present a new approach to the problem of improving the pivoting algorithms: instead of starting the Simplex with the canonical basis, we suggest as initial basis a vertex of the feasible region that is much closer to the optimal vertex than the initial solution adopted by the Simplex. By supplying the Simplex with a better initial basis, we were able to improve the iteration number efficiency of the Simplex algorithm in about 33%.
  • Keywords
    Numerical results , Linear programming , Pivoting algorithms
  • Journal title
    Computers and Operations Research
  • Serial Year
    2005
  • Journal title
    Computers and Operations Research
  • Record number

    928260