Following recent attempts to find appropriate choices for parameter of the nonlinear conjugate gradient method proposed by Dai and Liao, two adaptive versions of the method are proposed based on a matrix analysis and using ...

We suggest a linear combination of search directions of the Hestenes–Stiefel method and the memoryless BFGS (Broyden–Fletcher–Goldfarb–Shanno) technique. As a result, a one-parameter extension of the Hestenes–Stiefel method ...