Research Article

A Newton-Like Trust Region Method for Large-Scale Unconstrained Nonconvex Minimization

Table 2

Numerical results for NLMTR and NTR.

Prob/Dim NLMTR NTR

iter/nf/ / /cpu iter/nf/ / /cpu

1/3
2/2
3/3
4/5
5/10 **
5/50 **
6/10
7/10
7/50

5/100 **
5/500 **
7/100
7/500
8/100
9/100
9/500
10/100
10/500

5/1000 **
5/2000 **
5/5000 **
7/1000
7/2000
7/5000 **
9/1000
9/2000
9/5000 **
10/1000
10/2000
10/5000 **

The algorithm fails.