A novel gradient constraint equation was obtained through analyzing the error of temporal gradient.
通过对时间梯度误差的分析，得到了新的梯度约束方程；
Using the error bounds, we give a condition for convergence of the sequence of iterates generated by projected gradient methods.
最后，通过这些误差界，我们给出了由投影梯度方法产生的迭代序列收敛的条件。
Modelling tests are made in this paper to check the error subtraction scheme of the pressure gradient force in models with topography developed by the authors.
本文则用气候模式对作者提出的有地形数值模式中气压梯度力的误差扣除法进行了模拟检验。
If the scatter selected in phase gradient algorithm(PGA) algorithm is not isolated, the accuracy of the phase error estimation will be degraded.
当相位梯度算法挑选的散射点不是孤立散射点时，导致相位误差估计的准确性下降。
According to the assumption of slightly compressible fluid, neglected the quadratic gradient term in nonlinear partial differential equation is usually lead to error.
在非线性偏微分方程中，根据弱可压缩液体的假设，忽略二次梯度项，在试井较长时间内将产生误差。
In the MCMA, adjusting the scale coefficients of two gradient vectors can improve the convergence rate and reduce residual mean square error.
调整该算法中两个梯度矢量的比例系数，可提高该算法收敛速度、减少收敛后的均方误差。
Based on building up a model of echo canceller, the convergence of gradient-type stochastic adjustment algorithm of an adaptive filter under the mean-squared error criterion is discussed.
在建立回波抵消器模型的基础上，按最小均方误差准则，导出了自适应滤波器抽头的统计梯度算法和抽头调节的收敛公式。
BP network adopt error against propagate algorithm to leam and train the neural network at present, this algorithm is on the basis of the error function gradient of the network.
目前BP网络采用误差逆传播算法学习训练神经网络，该算法是基于网络误差函数梯度下降的。
In this paper, dynamical LMS algorithm and global optimization algorithm, with a view to gradient of error probability, are proposed based on analysis of sub-carries allocation space for OFDM system.
通过对OFDM的子信道比特分配空间进行分析，本文提出着眼于误比特概率梯度的动态lms算法和全局优化算法。
The velocity gradient, especially the perpendicular velocity gradient, leads the measuring error of flow angle with cylindrical probe to be larger than with conical multi-hole probe.
梯度使气流方向测量值向负梯度方向偏转。圆柱探针和锥形多孔探针相比，气流方向测量误差对速度梯度更敏感，纵向梯度对俯仰角测量值的影响尤其大。
Variable step-size natural gradient algorithm which enjoys faster convergence speed and smaller stability error is proposed to solve the shortcoming of natural gradient algorithm.
为了解决自然梯度算法的这个缺点，人们提出了变步长自然梯度算法，既可以获得较快的收敛速度，又可以减小稳定误差。
Hence, an error function with variable weighted coefficient is defined to control value of gradient norm.
因此，定义了一种变系数加权的误差函数，以控制梯度范数的大小。
A few or all of the parameters of the controller are adjusted by using the gradient descent algorithm to minimize the output error.
运用最优梯度下降法使目标的计算值与期望值误差最小来迭代优选权重，建立迭代算法模型。
Chapter 1 is the introduction of this paper, which introduces the the projected gradient method, the error bounds estimation and the main results obtained in this paper.
第一章是绪论部分。简要介绍了投影梯度方法，误差界估计以及本文的主要工作。
In Chapter 3, some error bounds estimations of the projected gradient methods are obtained.
第三章研究了投影梯度方法的误差界估计。
The essence of back propagation networks is that make the change of weights become little by gradient descent method and finally attain the minimal error.
其实质是采用梯度下降法使权值的改变总是朝着误差变小的方向改进，最终达到最小误差。
The results show that parabolic interpolation is much better than Gauss surface interpolation and gradient interpolation in calculating speed, accuracy and error fluctuation.
结果表明，抛物面插值法计算速度较快，精度较高，并且误差波动较小。
In the natural gradient algorithm, the convergence speed and stability error are two important indicators, but these two indicators are of inherent contradictions.
自然梯度算法有收敛速度和稳定误差两个重要指标，然而这两个指标存在内在的矛盾。
Aiming at the error between original design and large scale and complex rough casting, a gradient (simulated) annealing algorithm for the best fitting method is presented.
针对大型复杂铸件毛坯与设计原形存在误差，提出了梯度—模拟退火算法来对铸件毛坯进行适配。
Aiming at the error between original design and large scale and complex rough casting, a gradient (simulated) annealing algorithm for the best fitting method is presented.
针对大型复杂铸件毛坯与设计原形存在误差，提出了梯度—模拟退火算法来对铸件毛坯进行适配。
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