查询词典 Hessian

There have developed some technique to ensure the positive definiteness of the Hessian of the quadratic objective function.

对QP子问题的目标函数的Hessian阵的正定性研究已引起了许多学者的关注。

Jacobian, Hessian Matrix Properties, Sensitivity Analysis w.r.t Design Variables, Fixed Parameters and Constraints, Normalization, Finite Difference Approximation, Automatic Differentiation, ANOVA, Adjoint Methods, Examples

Jacobian， Hessian矩阵属性，灵敏度分析w.r.t设计变量，固定参数和约束，归一化，有限差分逼近算法，自动差分算法，ANOVA，伴随矩阵法，举例

A new TMH(Template-Matching with Hessian matrix) method is proposed in this paper.

提出了一种新的肺结节检测算法——TMH(引入了Hessian矩阵的模版匹配)算法。

Moreover, the algorithm has better robustness and accuracy than DGMI algorithm and Hessian matrix algorithm.

与DGMD算法和单独的Hessian矩阵法算法相比，本方法有很好的鲁棒性和较高的准确性。

Thereby, sparsity of the Hessian matrix of the objective function is maintained by the approximate updated matrix sequence.

此算法的另一个重要性质是：算法产生的逼近目标函数Hessian阵的矩阵序列保持对称正定性。

We use gradient vectors to find possible profiles, which are then verified by analysis of Hessian matrix in multiscale space.

我们经由梯度向量的方向寻找可能剖面，再使用多尺度空间中的Hessian矩阵分析，验证剖面的真确性。

A new TMH（Template-Matching with Hessian matrix） method is proposed in this paper.Firstly lung lobes are gained.

提出了一种新的肺结节检测算法——TMH（引入了Hessian矩阵的模版匹配）算法。

The method implements an accurate extraction using Hessian matrix eigenvectors and the Canny operator.

此方法结合了Hessian矩阵特征向量和Canny算子来进行准确提取。

An modified BFGS algorithm to solve the unconstrained optimization, whose Hessian matrix of the minimum point of the convex function is rank one defect, is presented in this paper.

本文对凸函数在极值点的Hessian矩阵是秩亏一的情况下，给出了一类求解无约束优化问题的修正BFGS算法。

In order to improve the robust and precise in image registration,we get the Hessian matrix removed to improve LMA for searching the eight unknown parameters of two input perspective transformation images and get computational gains.

为提高图像匹配的精度和稳定性，在图像匹配过程中用消除了Hessian矩阵的LMA改进算法对两幅图像透视变换矩阵的8个未知参数进行拟合，减少了迭代的计算量。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。