查询词典 data delimiter

Comparing with existing solutions, new method can utilize generators' speed signal measured by wide area measurement systems directly and detailed model and parameter of power system components were not needed. After sphering measurement-data, ICA with maximal negentropy criterion was carried out to obtain feature matrix. By this means high-dimension data of multi-machine perturbed trajectories were reduced to lower dimensions, and coherent generator groups were identified by pattern recognition consequently. Simulation results of 36-bus system with 8-generator and planning northwest China 750 kV power grid show that noise signals and bad data can be eliminated. This method is accurate in identifying coherent generator groups.

与现有方法相比，这种方法不需要获得系统元件模型和参数，而是直接球化广域测量系统(wide area measurement systems，WAMS)提供的发电机电角速度信号，再利用最大负熵准则进行独立分量分析得到特征矩阵，将高维数的多机受扰轨迹数据变换到低维空间，通过模式识别得到分群结果。8机36节点系统和西北750 kV电网规划系统算例表明，该方法能有效消除噪音和坏数据的影响，准确识别出同调机群。

Thus, user can know the data that needs to be deleted because of superposing recording. And it can also backup the data to avoid important data lost.

这样，用户事先就可以了解由于数据重叠记录而需要删除的数据，同时还可以将要删除的数据进行备份，从而可以有效防止由于重叠记录而引起的重要数据的丢失。

ABSTRACT In recent years data mining gets more and more attention and becomes one of the hottest spot in IT research field. Researchers from various fields show great enthusiasm for the subjects in data mining and are willing to devote themselves to the new field because data mining syncretizes artificial intelligence, statistics, database, and machine study. At the beginning of this new century, it is a large-scale amalgamation of subjects.

短短的几年时间，数据挖掘风靡全球，成为IT业近年来非常热门和前沿的研究方向之一，由于数据挖掘融合了人工智能、统计学、数据库、机器学习等各个领域的理论与技术，使得不同学科领域的学者对DM的研究表现出了前所未有的热情和参与精神，在世纪交替的特殊时期，这是又一轮规模空前的学科大融合。

It also concludes that the classification result is obviously better using C5.0 decision tree algorithm based on the combining data processed by a sequence of atmospheric correction, data fusion and transformed by NDVI, NDBI and Tasseled Cap than the raw data.

研究发现，C5.0决策树算法用未处理的资料生成决策树的效果较差，而经大气校正和数据融合后计算出NDVI、NDBI及缨帽变换的前3个分量的组合数据生成的决策树深度最小，并且分类精度最高。

Using computer real time data acquiring system and data measuring and transmiting telemetering developed by authors, a lot of data are acquired.

利用自行研制的计算机实时数据采集系统及井眼数据测量与传输遥测系统，获取了大量实验数据。

The data of velocities and depths are attained from the data collection of present results of geoscience transects including artificial seismic section data by digitalization.

至此，我们能够给地质体的速度结构赋予时间的含义，并进一步讨论了反演给出的年代格架在不同地学断面上的特点。

Main works in this paper include:(1) Studies on pipelines network underground" spacial data model and data structure;(2) Analysing and extracting the data of cities" pipelines network underground;(3) Methods of development with OpenGL in VC++;(4) Measures of pipelines network undergrounds realizition, such as division of map layer, foundation of coordinate system, real-time roaming about and so on;Finally, works that has been done in this paper is summarized, and prospect of the problems should be gone deep into in future is made, integrated with the experience and deficiency in this paper.

论文所做的工作主要有：(1)地下管网空间数据模型与数据结构的研究；(2)管线源数据的分析与提取；(3)地下管线可视化的方法，例如图层划分、坐标系的建立、地图投影的定义、漫游中的实时处理技术以及地下管线的3D几何造型技术等；(4)VC++中OpenGL开发和运用的方法；最后对本课题所完成的实际工作和所取得的结论性成果进行了概括和总结，结合在研究过程中的体会和不足，对以后的研究中需要进一步深入研究的几个方面做了一个简单的展望。

Has these phenomenon reason to include: Does not carry on the test in the analogy energy region selection test with the example to be able to obtain the different expiration data distribution; The software reliability testing input territory data distributions and the selection also affect in time domain expiration data distributed tendency and so on.

产生这些现象的原因有：在不同功能区选取测试用例进行测试会得到不同的失效数据分布；软件可靠性测试的输入域数据的分布与选取也影响时间域内的失效数据分布趋势等等。

The configuration software through completes the stage suspension bar to the stage suspension bar system design realization the monitor and controls the stage suspension bar automation information system construction mainly to include the stage suspension bar long-distance monitoring, part and so on distribution line automated system, its goal uses the scene supervisory system, realizes data source automatic gathering, with the aid of the stage existing network resources auto loading to the real-time database, applies for all levels of control section provides the opening the data platform, causes the administrative personnel promptly to control and to grasp the suspension bar tendency, thus realizes the entire stage suspension bar movement process automation; And may to the real-time data which obtains carry on the statistics, the analysis, the optimization, thus for guaranteed the suspension bar equipment normal work, reduces the performance production cost to provide the important basis.

组态软件通过对舞台吊杆系统的设计实现完成舞台吊杆的监测和控制舞台吊杆自动化信息系统建设：主要包括舞台吊杆远程监控、配电线路自动化系统等部分，其目的是利用现场监控系统，实现数据源头自动采集，借助舞台现有网络资源自动加载到实时数据库，为舞台管理部门应用提供开放的数据平台，使管理人员及时控制和掌握吊杆动态，从而实现整个舞台吊杆运行过程的自动化；并可以对取得的实时数据进行统计、分析、优化，从而为保证吊杆设备正常运转、降低演出生产成本提供重要依据。

Then, have predicted stock markets of Shanghai and Shenzhen with the completed nonlinear kinetics model, predict data is it fit to go on with figure of real data , compare real data (20 bargain day ) with datum that are predicted, the result is satisfactory, show the rationality and accuracy of this model further.

然后，用已建的非线性动力学模型对沪、深股市进行了预测，将预测数据与实际数据的图形进行了拟合，并将实际的数据（20个交易日）与预测的数据进行了比较，结果令人满意，进一步表明了该模型的合理性和准确性。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。