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- The authors propose a new hybrid conjugate gradient method. 摘要给出一个新的杂交共轭梯度法。
- The aim of this paper is to construct a three-term conjugate gradient method to solve the trust region subproblem. 在本文中,我们提出了解信赖域子问题的三项预处理共轭梯度法,并将这个方法嵌入解大型最优化问题的信赖域算法中。
- The conjugate descent method introduced by Fletcher (1987) is one of the conjugate gradient methods. 共轭下降法是由 Fletcher( 1 987)提出的一个共轭梯度法。
- Conjugate gradient methods are efficient to minimize differentiable objective functions in large dimension spaces. 摘要共轭梯度方法是求解大规模优化问题的一种非常有效的方法。
- Iterative methods by the generalized conjugate gradient method were constructed and its limited termination was proved. 利用广义共轭梯度法构造迭代算法,并证明了算法的有限步终止性。
- According to the filter matrix particularity, the filter equation was solved by using conjugate gradient method. 并根据滤波矩阵的特殊性,?用共轭梯度法求解滤波方程。
- The conjugate gradient method and quasi-Newton method are two important methods for sovling 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。
- Based on the steepest descent method and the conjugate gradient method, a hybrid algorithm is proposed in this paper, and its global convergence is proved. 摘要将最速下降法与共扼梯度法有机结合起来,构造出一种混合优化算法,并证明其全局收敛性。
- Application of complex conjugate gradient method(CCGM) and fast Fourier transform(FFT) to study multitudinous scattering in near-field optics. 利用共轭梯度法与快速傅立叶变换(CCGM-FFT)相结合的方法来研究近场多体散射问题。
- The conjugate gradient method (CGM) and fast Fourier transform (FFT) technique are used to reduce the necessary memory and CPU time. 在求解过程中应用共轭梯度法 (CGM)和快速傅立叶变换 (FFT)相结合的方法降低所需计算机内存和CPU时间。
- Application of complex conjugate gradient method (CCGM) and fast Fourier transform (FFT) to study multitudinous scattering in near-field optics. 摘要利用共轭梯度法与快速傅立叶变换(CCGM-FFT)相结合的方法来研究近场多体散射问题。
- The conjugate gradient method was applied in the prior smoothing process of the multigrid iteration procedure to improve the convergence rate. 在多重网格迭代的前光滑过程中,选择了共轭梯度法提高其收敛率;
- The variables in the linear subproblem are decoupled by a conjugate gradient method and the nonlinear one is treated as a quasilinear problem. 线性问题用共轭梯度法解除压强-速度的耦合;非线性问题进行局部线化。
- We propose an optimization algorithm based on conjugate gradient method to maximize the complete band gap of 2D photonic crystals. 摘要:依据共轭梯度法,我们提出一优化(最佳化)演算法,来优化二维光子晶体的能结构。
- However, linear search strategies usually bring computational burden.To overcome this problem, Sun and Zhang introduced conjugate gradient methods without linear search. 然而,线搜索技巧往往会增加计算的复杂度,为了克服这个缺点,孙捷和张家普又提出了一种叫做不带线搜索的共轭梯度方法。
- We select the Fletcher-Reeves conjugate gradient method to solve the unconstrained extremum problem, and take test computations on the microcomputer IBM-PC. 本文选用Fletcher-Reeves共轭梯度法求解无约束极值问题.;在IBM-PC型微机上进行了试算。
- By using active set strategy, the authors need only to solve a reduced trust region subproblem which is solved inexactly by the truncated conjugate gradient method. 作者利用有效集策略,在每次迭代中只需求解一个低维的信赖域子问题,该信赖域子问题是通过截断共轭梯度法来近似求解的。
- The tessellation scheme is employed for parallel filling the impedance matrix and parallel conjugate gradient method is used to solve the matrix equation. 论文首先给出了与并行共轭梯度法求解矩阵方程对应的矩量法矩阵的棋盘块划分方式,然后详细地讨论了并行共轭梯度算法求解矩量法矩阵方程的并行实现。
- ZHENG H, HE X R.Improved preconditioned conjugate gradient method and its applications to FEA in engineering[J].Applied Mathematics & Mechanics,1993, 14(4): 353-362. [22]郑宏;葛修润.;改进的预处理共轭斜量法及其在工程有限元分析中的应用[J]
- Three-dimensional paraxial approximate equation with optimized coefficientscan be obtained by using conjugate gradient method under least square premise. 本文在最小二乘意义下用共轭梯度方法导出优化系数的三维傍轴近似方程。