Asef Nazari

The Multiple Part Type Cyclic Flow Shop Robotic Cell Scheduling Problem: A Novel and Comprehensive Mixed Integer Linear Programming Approach

  • Atabak Elmi
  • Asef Nazari
  • Dhananjay Thiruvady
    • Categories (Mixed) Integer Nonlinear Programming, Scheduling, Transportation

    This paper considers the problem of cyclic ow shop robotic cell scheduling deploying several single and dual gripper robots. In this problem, dierent part types are successively processed on multiple machines with dierent pickup criteria including free pickup, pickup within time-windows and no-waiting times. The parts are transported between the machines by the robots. We … Read more

    A quasisecant method for minimizing nonsmooth functions

  • Adil Bagirov
  • Asef Nazari
    • Categories Nonlinear Optimization, Nonsmooth Optimization Tags , , ,

    In this paper a new algorithm to locally minimize nonsmooth, nonconvex functions is developed. We introduce the notion of secants and quasisecants for nonsmooth functions. The quasisecants are applied to find descent directions of locally Lipschitz functions. We design a minimization algorithm which uses quasisecants to find descent directions. We prove that this algorithm converges … Read more

    A secant method for nonsmooth optimization

  • Adil Bagirov
  • Asef Nazari
    • Categories Convex and Nonsmooth Optimization, Nonsmooth Optimization Tags , , ,

    The notion of a secant for locally Lipschitz continuous functions is introduced and a new algorithm to locally minimize nonsmooth, nonconvex functions based on secants is developed. We demonestrate that the secants can be used to design an algorithm to find descent directions of locally Lipschitz continuous functions. This algorithm is applied to design a … Read more