The basic idea of these methods is to approximate the optimization problem by a sequence of quadraticminimization problems subject to some trust region.
该类算法的基本思想是通过求解一系列二次函数在信赖域中的极小值点逼近最优化问题的解。
2
Under new control conditions, we prove convergence of the quadraticminimizationproblem, which improves the recent results by Xu about quadratic optimization.