We consider a hybrid Dai-Yuan conjugate gradient method. We confirm that its numerical performance can be improved provided that this method uses a practical steplength rule developed by Dong, and the associated convergence is analyzed as well.
"A Globally Convergent Hybrid Conjugate Gradient Method and Its Numerical Behaviors." J. Appl. Math. 2013 1 - 14, 2013. https://doi.org/10.1155/2013/147025