Recently Zhang et. al. [1] proposed a new trust region method called adaptive trust region method, in which the trust region radius depends on the gradient and Hessian of the current iterate point.

• 最近章祥荪等在文[1]中给出了一种自适应信赖域算法，利用当前迭代点的梯度和海赛阵信息来选取当前迭代步的信赖域半径，数值试验表明，该方法比一般的信赖域方法有效。