查询词典 metric space

Furthermore, residual interference is analyzed. In Chapter Six, Principal Component, Cross-Spectral Metric, Auxiliary-VectorFiltering and Multistage Wiener Filtering are applied to study low-rank blind space-timemultiuser detection with the generalized canonical representation in multipath channels.

第六章基于最小方差盲空时多用户检测的广义正则形式，利用主成分方法、互谱度量方法、辅助向量滤波和多级维纳滤波，研究了多径条件下的低秩盲空时多用户检测。

But develop an institute according to Shanghai committee of planning and Beijing economy and society the metric analysis result of two tasks group is computative, shanghai should reach the high level with modern metropolitan international, still have the space of 70%.

但据上海市计委与北京市经济与社会发展研究所两个课题组的计量分析结果推算，上海要达到现代化国际大都市的高级阶段，还有70%的距离。

At many occasions they arise quite natu-rally.For example,they appear in the Iwasawa decomposition of the isometry group ofa non-compact Riemannian symmetric space.Also,every connected homogeneous Rie-mannian manifold of non-positive sectional curvature can be represented as a connectedsolvable Lie group with a left-invariant Riemannian metric.

它们出现在非紧致黎曼对称空间的等距群的Iwasawa分解中；任一非正截面曲率的连通齐性和黎曼流形可以表为带有左不变黎曼度量的连通可解李群等，带有左不变黎曼度量的幂零及可解李群的微分几何，调和分析和谱几何是重要的研究课题。

In this paper,a novel kernel based SOM algorithm is proposed.we replace the Euclidean norm in the SOM training procedure with kernels,which is equivalent to change the metric of distance in input space.

引言 Kohonen提出的自组织特征映射理论(Self OrganizingMaps，SOM) [1 ] 具有聚类、自组织、自学习以及可视化的功能，已广泛的应用于模式识别、数据挖掘、故障诊断等邻域。

As the result of using Euclidean norm metric, the performance of traditional FCM clustering algorithm is subject to the structure of sample patterns in feature space.

一是针对SAR图象，提出了基于混合偏移Rayleigh分布假设的最小误差算法；二是针对低质量图象，提出了基于散射图SEM估计的MAP聚类算法。

However, most research results were on the ideal condition that geographical space was a homogeneous one, and almost all spatial analysis methods are according to the metric of planar Euclidean distance, its drawback is quite obvious.

但是，目前多数研究都假设地理空间是一个均质空间，采用基于平面欧氏距离的空间分析方法，这是有局限的。

Therefore,symmetric transformation can not be defined by metric conception in Euclidean space En.

在射影空间Pn中不存在度量概念，不能像欧氏空间En那样用度量概念来定义对称变换。

And a solution for crowd path navigation based Voronoi diagram is presented. By making use of the ability that the Voronoi diagram partitions the space according to the Euclidean metric, the path planning with collision avoidance is achieved by forbidding agents to move outside their Voronoi regions.

利用Voronoi图对平面按照欧式距离进行划分的特性，并通过将每个虚拟人的Voronoi区域作为其活动范围，使每个虚拟人都限制在自己的区域内活动，从而在人群路径规划中避免了为虚拟人进行碰撞检测的复杂操作。

Real Number System, Euclidean Space and Metric Spaces, Sequences in R and R^n, Differentiability on R and Rn, Integration on R and Rn, Infinite Series of Functions, Fourier Series, Fundamental Theorems of Vector Calculus, Inverse Function Theorem, Implicit Function Theorem and its Applications.

课程内容：实数系，Euclidean空间与距离空间，函数数列，函数级数，连续函数，可微分函数，可积分函数，反函数，隐函数定理及其应用，向量微积分基本定理，富氏级数。

Main contents of the thesis include point and edge extraction based on least-squares template matching; space circle template matching and reconstruction; outlier detection and elimination with fundamental matrix and trifocal tensor; improvement of Homography-based calibration technique, 2D-DLT and bundle adjustment based non-metric camera calibration technique with planar-scenes, point-line hybrid photogrammetry and visual inspection.

本文的主要研究内容包括影像格网点与直线段的自动最小二乘模板匹配；基于物方直接解的空间圆匹配与重建；利用基本矩阵和三视张量进行观测值粗差的剔除；同形矩阵摄像机标定算法的改进；基于二维 DLT 和光束法平差的非量测数字摄像机标定；点、线混合摄影测量模型与视觉检测精度分析等。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。