The conjugate gradient method and quasi - Newton method are two important methods for solving nonlinear optimization problems.

共轭梯度法和拟牛顿方法是求解无约束优化问题的最重要的两种方法.

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A three - phase distribution state estimation algorithm is proposed in this paper which based on Newton method.

提出了一种基于牛顿法的三相配网状态估计算法.

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In order to reduce computational effort , piecemeal dimensionality reduction Newton method was used to solve model.

为减少计算量, 采用分块牛顿降维算法求解.

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