In this paper, we propose a new descent direction. Under the pseudomonotone of the underlying function, we prove the global convergence of the algorithm.
提出一个新的下降方向，在函数伪单调的条件下证明了算法的全局收敛性。
In this paper, the steepest descent curve of quadratic function through one point was first defined from the steepest descent direction of quadratic function at one point.
首先，从二次函数在一点的最速下降方向出发定义二次函数过一点的最速下降曲线；
Conclusion: the mitral annular descent velocity can be used as a new index to evaluate the LV systolic function in mi.
结论：测量二尖瓣环下行速度可作为一个评价左室收缩功能的新指标。
QTACE could cause the descent of cellular immunologic function, which showed the disorder of T-lymphocytes population.
TACE可使机体免疫功能在一定时间内下降，表现为外周血T淋巴细胞亚群分布的紊乱；
Using gradient-descent methods the energy function is minimized and a curve evolution equation is obtained to segment the image.
运用梯度最陡下降法，推导出能量函数曲线演化方程，并应用于图像分割。
For the learning process, a new kind of empirical risk function is proposed which is differentiable and can be minimized by gradient descent strategy.
对于参数的学习，提出了一种适用于分类器的可微经验风险函数，该函数能够有效地利用梯度下降法进行最小化。
For the learning process, a new kind of empirical risk function is proposed which is differentiable and can be minimized by gradient descent strategy.
对于参数的学习，提出了一种适用于分类器的可微经验风险函数，该函数能够有效地利用梯度下降法进行最小化。
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