The direction of search starting from an extreme point is a convex combination of all descent directions along the edges at the point.

从极点出发的搜索方向是该点处所有下降棱方向的一种凸组合。

youdao

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。

youdao

This method proposes five decimation patterns based on the gradient descent direction, and it can select the decimation pattern adaptively during the motion estimation.

首先改进传统的一维梯度下降搜索算法，并提出由梯度下降方向自适应选择不同的抽取模式去除计算运动估计准则时的冗余。

youdao

Like the paper-clip, the airframe and its alloy skin are stressed first in one direction as the cabin is pressurised while climbing to its cruising altitude, and then in the opposite direction when depressurised during descent for landing.

ECONOMIST: Aircraft fatigue

We left the rocky alpine pinnacle, where a beautiful view of thick forest and tantalizing, sparkling lakes extended for miles in every direction, and began our descent.

BBC: Share this page