Moreover, an improved conjugate gradient algorithm is used to train the network and to overcome the shortcoming of easily trapping into local minimum points. 网络训练时采用共轭梯度学习算法并对此算法进行了改进,有效的克服了梯度学习算法容易陷入局部极小的缺点。
The reasonable velue of the magnification factor and the steady state solution for the positions of conjugate imaging points are determined forthright by using the condition of perturbation stability of mode. 用模的微扰稳定性条件,简捷地确定几何放大率的合理取值和共轭像点位置的稳态解。
We study the variation of a null geodesic with conjugate points on it, and make the conclusion that the proper acceleration of the time-like curves generally approach infinity as they approach the null geodesic in the second part of the thesis; 第二部分,对具有共轭点的类光测地线进行变分,由此得到类时曲线在逼近此类光测地线时,其固有加速度趋于无穷大;
The circular arc gear drive is one kind of axial conjugate gear drive which meshes in points. The movement transmission depends contact mark along the end motion to realize. 圆弧齿轮传动是一种轴向共轭、点啮合制的齿轮传动,运动的传递依靠接触迹沿轴向移动实现。
This essay is concerned with the method for determining the conjugate point of refraction wave& outgoing ray and its application. It extends the utilization of Hales'method and conjugate points method in the case of undulating terrain and rock surface. 本文在讨论地形起伏情况下,折射波出射线共轭点的确定方法,并介绍它的应用情况,扩展了哈莱斯法和共轭点法在地形及基岩面同时起伏情况下的应用。
A vertical fractured well can bring out two dimensional flow in the direction of normals of developing ellipse conjugate equal pressure ellipse and hyperbola streamline bunches whose focal points are the two ends of the fracture when it works. 垂直裂缝井工作时在地层中诱发平面二维椭圆渗流,即形成以裂缝端点为焦点的共轭等压椭圆和双曲线流线族。
The determination of conjugate points 'position of observation 观测共轭点点位之确定
It tells us in Riemannian manifold, the Morse index of geodesic C equals to the numbers of the conjugate points of C ( 0), each counted with its multiplicity. 它告诉我们黎曼流形中的测地C的Morse指标等于C上的共轭点的个数(个数按重数计算)。
Conjugate Curves of Same Direction and Two Kinds of Boundary Points 同向共轭曲线与两类界点
The Geodesics without Conjugate Points on the Manifold with Nonnegative Ricci Curvature 具非负Ricci曲率流形上的无共轭点测地线
Utilizing the symmetric property of the hyperbolic complex space-time, we may explain the correspondence relations of time inversions, energy inversions and complex conjugate transformations. In the meantime, we can find the space-time correspondence points of the positrinos and the antiparticles. 利用双曲复时空间的对称性,可以解释时间反演、能量反演与复共轭变换的对应关系,能够找出正、反粒子的时空对应点。
The Manifold with Nonnegative Curvature and without Conjugate Points 具非负曲率的没有共轭点之流形
Automatic image measuring is to identify and to measure conjugate points in two or more overlapping photographs automatically. In digital photogrammetry, this process is done by image matching. 立体影像自动量测是通过影像匹配方法在立体像对上自动识别同名像点并获得像点坐标。