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- decreasing gradient algorithm 梯度下降法
- Gradient algorithm has been widely used for training the weights of feedforward neural networks. 梯度算法广泛应用于训练前馈神经网络.
- Standard stochastic gradient algorithm of blind source separation is only adapted to Euclidean space. 盲源分离的常规随机梯度算法只适用于欧氏空间,对于更一般的黎曼空间则必须采用自然梯度算法。
- Preconditioned con- jugate gradient algorithm is a fast and accurate computational algorithm. 预条件共轭梯度法是一种精确并且收敛迅速的计算方法。
- A optimization algorithm by using chaos which combines the chaos and the gradient algorithm is proposed. The algorithm can find the global miniumum. 将混沌变量与梯度法相结合，提出了一种基于混沌的优化算法，该算法具有搜索全局最优解的能力。
- In this control structure, an SVM is used as identifier, the control signal is solved by an exponentiated gradient algorithm. 该控制结构以支持向量机为辨识器，并用指数梯度算法来求控制作用。
- Based on the merit function, a new conjugate gradient algorithm for solving linear inequalities system problems was proposed. 利用这个价值函数，提出了求解线性不等式组问题的一种新的共扼梯度算法。
- The nonlinear blind source separation algorithm is proposed using improved particle swarm optimization (PSO) combined with natural gradient algorithm. 摘要采用粒子群算法与自然梯度法相结合进行非线性混叠信号盲分离。
- In the algorithm,the phase gradient algorithm(PGA) was performed,and the signals of multiple scatters on a few range bins were utilized. 该算法采用了相位梯度算法(PGA)的处理结构,利用了多个距离单元上的散射点信号。
- Image reconstruction is often converted to the nonrestraint extremum of the nonlinear equations.We have deduced a conjugate gradient algorithm from the extremum of norm. 图像重建常常被转化为解非线性无约束极值问题,通过范数极小化推导出共轭梯度法的一般算法。
- A new method of realizing the edge detection for color image is constructed by the gradient algorithm of multi-structuring elements morphological of HSI space in the paper. 构建了一类在HSI颜色空间基于多结构元彩色形态边缘检测梯度算法实现彩色图像边缘检测新方法,多结构元形态边缘检测有着比单一结构元素形态边缘检测更优越的性能。
- Using the genetic algorithm as the online optimizing algorithm, it escape the problem of account the derivative repeatedly at gradient algorithm, and it predigest the problem. 采用遗传算法作为预测控制的滚动优化策略，避免了梯度算法中的多次求导运算的问题，从而使得求解过程简化。
- Accordingly, the improved conjugate gradient algorithm(ICGA) can be used to invert narrowly distributed, widely distributed and multi-modal PSD in practice. 针对以上问题，提出通过改变收敛阈值来控制迭代过程，使该算法可满足窄、宽和多峰分布的粒度求解要求。
- Actual radial velocity distribution, that have been calculated, indicate that the narrower the annulus, the slower the decrease gradient of the velocity at radia... 结果表明,环空间隙越小,其因旋转引起的速度下降沿径向衰减速度越平缓,旋转套管效果越好,证明旋转套管对提高小间隙固井质量意义更大。
- Decreasing gradient optimization algorithm with variable step length based on chaotic variables 基于混沌变量的变步长梯度下降优化算法
- Our method makes use of the merits of two algorithms: first order gradient algorithm and conjugate gradient algorithm. 采用一阶梯度算法结合共轭梯度算法的方法求解了终时不固定的最优控制问题。
- The BP network architecture applied to determine GPS standalone position is designed. Meanwhile, the conjugate gradient algorithm is used to improve the training velocity and accuracy of the network. 本研究设计了适用于GPS单点定位计算的BP人工神经网络模型结构,采用共轭梯度算法改善网络的训练速度和精度。
- Under the frame of natural gradient algorithm, an ICA algorithm based on adaptive kernel estimation is proposed, which can separate arbitrary mixed signals (such as super-Gaussian and sub-Gaussian, symmetric and asymmetric signals). 摘要在自然梯度算法的框架下，本文利用随机变量概率密度函数非参数估计的自适应核函数法，给出了一种能够对任意混合信号（超高斯和亚高斯信号，对称和非对称分布信号）进行盲分离的算法。
- The birthrate in the city has been decreasing. 该市的出生率一直持续下降。
- Interest in the sport is decreasing. 人们对此项运动的兴趣已逐渐淡薄。
