英语词汇“Steepest ascent”字怎么读，Steepest ascent的拼音、意思释义、用法及组词造句例句翻译-英语翻译词典-学习充电-依恋情感网

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词汇	Steepest ascent
分类	英语词汇英语翻译词典
释义	Steepest ascent 原声例句海蒂 They still had to climb a steep ascent that lay behind Peter's hut. 他们还得爬上彼得小屋后面的陡坡。消失的地平线 Mallinson, whom the steep ascent had kept silent for a time, gasped out: " Good man, we're doing fine-carry on" ! 陡峭的上坡让他沉默了一段时间的马林森喘着气说：“好人，我们做得很好——继续前进”！海蒂 The grandfather had brought a big basket with him, in which he carried half the contents of Heidi's trunk; it had been too large to be conveyed up the steep ascent. 祖父随身带了一个大篮子，里面装着海蒂行李箱里一半的东西。它太大了，无法运送到陡峭的斜坡上。三个神秘人 But the boundary of all was a great wall of mountain, vast in the west, and ending like a fortress with a steep ascent and a domed tumulus clear against the sky. 但一切的边界是一堵巨大的山墙，西部广阔，尽头像一座堡垒，陡峭的坡度和穹顶的古墓映衬着天空。加州的群山（上） All the passes make their steepest ascents on the eastern flank. On this side the average rise is not far from a thousand feet to the mile, while on the west it is about two hundred feet. 所有的隘口都在东翼上升最陡。在这边，平均上升距离从一千英尺到一英里不远，而在西边大约有两百英尺。中文百科梯度下降法 Gradient descent （重定向自Steepest ascent）梯度下降法（英语：Gradient descent）是一个最优化算法，通常也称为最速下降法。梯度下降法，基于这样的观察：如果实值函数 $F(\mathbf{x})$ 在点 $\mathbf{a}$ 处可微且有定义，那幺函数 $F(\mathbf{x})$ 在 $\mathbf{a}$ 点沿着梯度相反的方向 $-\nabla F(\mathbf{a})$ 下降最快。因而，如果对于 $\gamma>0$ 为一个够小数值时成立，那幺 $F(\mathbf{a})\geq F(\mathbf{b})$ 。考虑到这一点，我们可以从函数 $F$ 的局部极小值的初始估计 $\mathbf{x}_0$ 出发，并考虑如下串行 $\mathbf{x}_0, \mathbf{x}_1, \mathbf{x}_2, \dots$ 使得英语百科 Gradient descent 梯度下降法（重定向自Steepest ascent） Gradient descent is a first-order optimization algorithm. To find a local minimum of a function using gradient descent, one takes steps proportional to the negative of the gradient (or of the approximate gradient) of the function at the current point. If instead one takes steps proportional to the positive of the gradient, one approaches a local maximum of that function; the procedure is then known as gradient ascent.
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