Ou, Yi-gui; Wang, Guan-shu - In: Computational Optimization and Applications 53 (2012) 1, pp. 249-270
This paper presents a hybrid ODE-based method for unconstrained optimization problems, which combines the idea of IMPBOT with the subspace technique and a fixed step-length. The main characteristic of this method is that at each iteration, a lower dimensional system of linear equations is solved...