数据

By analyzing the syntax of triggers, summarizing the relation of data, combining the practical application,the relation of data's trigger is obtained That is data's transform of different database system , different disposal of same format's data , amalgamation of different format's data and existent relation of cascade connection .

为了提高触发器性能，对触发器的语法进行剖析、分解，数据关系应用进行归纳并结合大量的实践应用，得出数据触发关系主要有：不同数据库系统之间的数据转换、同类数据进行不同处理、不同数据融合到一起和数据之间存在的级联关系。

The method includes acquiring with the frequency meter the tested clock signal and measuring its frequency; sending the tested frequency value to the data acquisition and processing module for calculation and processing regularly; and processing the frequency data comprehensively in the data processing output module and displaying output figure and historical data.

所述的方法包括：首先，频率计采集待测时钟信号，并测试其频率值；然后，频率计定时将测试得到的待测时钟信号的频率值发送给数据采集处理模块进行计算处理；最后，数据输出处理模块对接收数据采集处理模块处理后的频率数据进行综合处理，并将获取的图形数据和历史数据显示输出。

This paper introduces a telemetric collecting and processing system which can continually collect telemetric data flow at a data rate within 480k bps, accomplish the tasks of data division, engineer- ing unit transformation and real-time data display, and put the data into large external memory in a designed format.

本文介绍的遥测数据采集与处理系统能对码速率在480kb/s以内的遥测数据流进行不间断的采集，并在采集的同时完成数据分路、工程单位转换、实时数据显示等数据处理工作，并将数据按规定格式存入外部海量存储器。

The paper presents the history, concept and architecture of data warehouse, and the similarity and difference between database and data warehouse, as well as the concepts of metadata and data marts. It also introduces the history and development of decision support system.

本文介绍了数据仓库产生的背景，及其与数据库的联系与区别，数据仓库的概念、特点，元数据和数据集市的概念，及数据仓库系统的体系结构；决策支持系统的发展历程，基于数据仓库的决策支持系统。

The design of this dissertation begins with the definition of audience data structure based on considering the embedded developing environment features. The dissertation uses the STi5518 chip by ST Microtones to collect audience data, and then the SI analysis and OSD interactive function are used to gain the user watching information. Then collect audience data in EEPROM of STB, use STB and serial to transmit the data, then use the RS232 serial port and RJ-45 converter to realize the data Return of Serial to Ethernet, in the process of data Return it completes the conversion of data format.

本设计首先在嵌入式环境的前提下，在用户数据采集和回传工作中采用了ST Microtones公司提供的STi5518芯片作为机顶盒主芯片，根据收视率调查需要制定出用户的收视信息数据结构，并结合数字电视业务信息分析以及机顶盒的屏幕显示互动功能，对用户的收视情况进行记录；然后把记录的数据存储到机顶盒的EEPROM中，并利用机顶盒串口输出数据，再利用RS232串口与RJ-45转换器实现串口转以太网的数据回传，在回传过程中完成了数据格式的转换。

In order to get useful data, it researches the network sniffing technology based on Raw Socket and mainly studies the technology of protocol analyze and data recombine. And it introduces the Trojan horse technique to the network data collection part, improves the process hiding technique, uses the triple-thread technique, and so on. It ensures the imperceptibility and stability of the network data collection part. Then this paper develops pseudo hypertext transfer protocol based on HTTP. This protocol is used in the communication between the network data collection part and the service part, which make the communication more covert.

研究基于Raw Socket的网络监听技术，为了能取到敏感数据，还对协议解析和数据重组技术做了详细研究；并在网络数据采集端引入了木马技术，对进程隐藏技术做了改进，采用三线程技术等，来保证网络数据采集端的隐蔽性和稳定性；接下来本文在分析HTTP协议的基础上设计开发了PHTTP协议，该协议用于网络数据采集端与服务端之间的数据通信，使通信更加隐蔽。

In a method providing sub-code data to a host computer in an optical disc drive formed so that data from a pick-up is reproduced through a buffer, the method includes the operations of setting sub-code data whenever data of a predetermined unit is output from the buffer, and transmitting the set sub-code data to the host computer when the sub-code data is requested from the host computer during the reproduction mode.

用于在光盘驱动器中向主计算机提供子代码数据从而通过一个缓冲器将来自拾音器的数据重现而构成的方法中，该方法包括步骤：只要从缓冲器输出预定单元的数据，就设置子代码数据，以及在重现期间，当主计算机请求子代码数据时，将该设置的子代码数据传送给主计算机。

The software is constituted a set to have three structures patterns (the customer level, the logical level and the data level) the distributional spatial data platform software, this software mainly by based on number according to the data searches the module, isomerism space data conformity module, the spatial data browser three big modules constitutions.The paper altogether divides five chapters.

软件由基于元数据的数据查找模块、异构空间数据整合模块、空间数据浏览器模块构成，利用该软件能开发出具有三层结构(分别为客户层、逻辑层和数据层)模式的分布式空间数据集成平台。

Click " the data are chosen ", when there are data while counting in the resistance, the final election frame is available, when there are no data, the final election frame is not available

通过&数据|数据获取&进入数据获取界面。2、点击&数据选择&，电阻计中有数据的时候，复选框可选，没有数据的时候，复选框不可用。

The method is realized via the following steps: first to apply Isomap or LLE to get the embeddings of the original data set in the low dimensional space; then to obtain support vectors, which are the most significant and intrinsic data for the final classification result, by using support vector machine on these low dimensional embedding data; subsequently to get support vectors in the original high dimensional space based on the corresponding labels of the obtained low dimensional support vectors; finally to apply support vector machine again on these high dimensional support vectors to gain the final classification discriminant function.

数据挖掘是数据库知识发现中最重要的步骤之一，其目标是从获取的数据中高效准确地挖掘出我们所需要的信息。在实际应用中，数据往往呈现海量、高维、非线性等特性，这些特性给数据挖掘带来了很多问题，例如海量特性导致的计算效率低下问题、高维特性带来的维数灾难问题和非线性特性引起的线性模型失效问题等。幸运的是，实际中高维数据的属性之间往往存在一定的规律性和相关性，即实际数据经常存在着外在与内在两个维数。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。