查询词典 weighted function

A new scheme of target discrimination in SAR images, consisted of frames, models and algorithms, is proposed. Under such a scheme, a global frame, combining orderly the algorithm based on feature extraction and that based on knowledge, is then proposed. Moreover, in the method of target discrimination based on feature extraction, a "loose-coupling" model is given. The existing features are chosen and three new features about the contrast are given under the "loose-coupling". Meanwhile, an algorithm of feature selection based on Genetic Algorithm is also modified to solve the problem that the existing algorithm can not evaluate the goodness-of-features comprehensively. The weighted quadratic distance discriminator is designed to improve the performance of target discrimination. Finally, a method based on the knowledge of target groups to remove clutter false alarms is also given.

提出了一种目标鉴别的新方案，该方案包括目标鉴别的框架、模型以及算法；提出了基于特征选取鉴别和基于编队提取鉴别"序贯"连接相结合的目标鉴别框架；在基于特征选取进行目标鉴别的方法中，提出了目标鉴别的"松耦合"模型；提出了"松耦合"模型下目标鉴别的特征提取方法，包括已有特征的筛选和3个新的对比度特征的提出；改进了一种基于GA的特征选择方法，克服了已有方法对特征优劣评价不全面的问题；设计了加权二次距离鉴别器，提高了鉴别的性能；研究了基于目标编队知识进行进一步杂波虚警剔除的方法。

Midbrain atrophy and diffuse high signal lesions on T 2 weighted images in the tegmentum and tectum of the brain stem are characteristic of PSP and coincide with the degree of severity and duration of the disease.

中脑萎缩和脑干被盖、顶盖部T2 加权像弥散性高信号损害是PSP的特点，且和临床有相一致的关系。

In order to eliminate the effect of noise, wavelet-based denoising technique was used both on diffusion weighted images and noisy tensor field. We also compared the wavelet-based denoising method with the Gaussian smoothing, the traditional denoising method in image analysis.

为降低图像噪声对纤维跟踪的影响，分别采用小波去噪方法对扩散加权图像和张量场进行处理，并对小波去噪和传统的高斯平滑方法在扩散加权图像噪声抑制方面的作用进行了比较。

In this talk, we discuss an edge-weighted centroidal Voronoi Tessellation model for image segmentation and some efficient algorithms for its construction.

在本报告中，我们将讨论一种边缘加权的重心Voronio网格化模型，用于图像分割。

A new statistical test is proposed to test for linearity of a locally weighted fitting models based on the scale space weghted regression.

利用尺度空间的思想，我们设计和分析了局部加权拟合方法的统计量即相应的回归关系检验方法。

In this algorithm, introduce time delay to depress noise, and initially propose a weighted correlation coefficient and conduct statistic test on it.

本算法在传统PCA基础上引入了延时以抑制高斯噪声，提出了加权相关系数及对该系数的t检验，并用计算机仿真验证了其有效性。

It weighted their contributions to global warming, air and water pollution and thermal pollution (for example from discharging power station coolants into water).

它权衡了它们对于全球变暖、空气和水污染以及热污染（例如电厂把冷却液中的热传递给水）。

In this paper the authors study proprieties of certain convolution operators on L and weighted BMO spaces,where G is a locally compact totally disconnected group with a suitable sequence of open compact subgroups.

本文主要讨论了定义在局部紧的全不连通群G上的一类卷积算子在加权L和BMO空间的性态。

Based on the transfinite interpolation theory, an improved algebraic grid generation method is presented in this paper. Our improvements of existing algebraic grid generation method include:(1) orthogonality control, which greatly improves grid orthogonality adapted to viscous flow calculation;(2) weighted average smoothing, which efficiently handles with grid intersection due to concave corner existence;(3) normal vector control, which adjusts grid smoothing near convex corner.

基于无限插值理论，引入本文提出的网格正交控制、物面法向量控制、加权平均光顺措施，给出了一种改进的空间网格生成方法，有效克服了传统无限插值网格生成方法在复杂外形网格生成方面的缺陷，有效改善了网格的法向疏密性、贴体性及周向网格的均匀性，对真实飞行器部件网格生成非常迅速。

Weighted hashing could distribute appropriate flow according to enable firewall component, to improve overall efficiency. In the fault-tolerant mechanism, transition hashing table was used to record unstable connection when firewall component came into failure or came back to work, which could avoid existed connections broken due to the transformation of algorithm parameter.

加权处理根据防火墙组件的不同处理能力调度访问请求，保证处理能力强的防火墙组件处理更多的访问流量，提高了系统的整体效率；容错机制在防火墙组件失效或恢复正常时利用基于连接调度的过渡散列表记录不稳定连接，避免已有连接因算法参数改变而失效。

He has to relate with three women in the movie, and yet remain implicitly faithful to the unseen Lucinda.

让克劳德布里亚里成功地饰演试验了一个难度很大的角色：和三个女人打交道，但还要底下对观众未曾谋面的卢馨达保持忠诚。

The experiment was conducted to study effects of inulin on the growth performance, indices of immune organs and serum immunoglobulin of laying chicklings as well as the performance of inulin which replaced the antibiotics in diets by adding 0.2%, 0.4% and 0.8% of inulin, respectively.

试验旨在通过在蛋用雏鸡日粮中添加0.2%、0.4%和0.8%的菊粉，研究菊粉对蛋雏鸡生长性能、免疫器官指数和血清免疫球蛋白的影响，以及菊粉替代抗生素对蛋雏鸡的应用效果。