我将使用通过Wikipedia文档生成的矢量来演示集群，但是也可以从其他地方获取矢量，比如说传感器数据或用户资料。
I'll demonstrate clustering using vectors produced from Wikipedia documents, but the vectors can come from other areas, such as sensor data or user profiles.
若要获取较宽散射矢量范围的实验数据，还要改变实验仪器设置，对同一样品进行几次测量。
If a wide scattering vector range is needed, one has to measure the same sample under different instrument configurations.
注记信息的存在使得从专题图自动获取矢量数据具有一定难度。
It is difficult to automatically and accurately extract vector data from thematic map because of annotations.
然后又重点对航姿数据的获取方法和控制率进行了研究，设计出用双矢量法改进的捷联航姿解算方案和模糊pd控制方法。
Attitude and then focus on methods of data acquisition and control rates were studied, designed a two-vector method with improved AHRS Solution program and fuzzy PD control method.
用矢量基础图件叠加来获取单元图斑的方法是GIS的基本功能，但叠加多边形的不确定性成为影响GIS数据质量的灾难性因素。
It is the basic function for GIS to get unit polygon by overlaying the vector map, but the uncertainty of polygon is the disastrous factor affecting GIS's data quality.
采用不同数据源获取的干涉图进行了矢量滤波和频谱加权滤波实验。
Some interferograms derived from different systems were filtered by vector filter and by spectrum weighting filter.
数字栅格图和数字线划图是可以低成本获取的两种数字地图，而DLG是目前最普遍的矢量数据格式，是GIS的主要数据来源。
Digital raster graphic(DRG) and digital line graphic(DLG) are two digital maps that can be taken cheaply, and DLG is a commonest data format now, it is the main data source of GIS.
文中就如何对规则格网数据所描述的区域通过二值化处理 ，运用八向邻域的有向判断策略 ，提出了一种获取描述区域矢量边界的算法。
This paper gives an algorithm of the acquisition of boundary vector of regions through a way of bi value processing and the directory judgement of the neighbouring domains in eight directions.
作为项目的基础性部分，本课题需要为其它相关的课题提供所需的数据，其中很重要的一项任务就是从栅格影像中获取矢量数据。
As a basal part of the whole project, this study is demanded to provide necessary data for other systems. One of the tasks is to extract vector data from raster images.
作为项目的基础性部分，本课题需要为其它相关的课题提供所需的数据，其中很重要的一项任务就是从栅格影像中获取矢量数据。
As a basal part of the whole project, this study is demanded to provide necessary data for other systems. One of the tasks is to extract vector data from raster images.
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