However, the traditional trust region subproblem may meet difficulty. The Hessian matrix of the trust region subproblem may not be positive definite. In this case, the convergence rate of some trust region methods is only linear.

  • 但传统的信赖域算法存在如下弱点:当信赖域子问题的海森矩阵不正定时,数值计算上存在一定困难,此时有些算法只具有线性收敛速度。

  • 互联网摘选 2026-07-01 13:05:42

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