数据

Managing the data from various remote sensing platforms and sensors and conjoining the different scale data are the key of constructing multi-scale image database. It includes dealing with a mass image data, conjoining the different scale data and achieving multi-scale showing, etc.

管理不同遥感平台和传感器的数据，实现不同尺度数据的相互关联是多尺度遥感影像数据库建设的关键，其中涉及海量影像数据的规范化处理，不同尺度数据的关联以及影像数据的多尺度呈现等问题。

The dissertation focused on the technologies, algorithm and application of WBSDM, and the main studies and new contributions are described as follows: 1. Technologies of spatial data mining and web-based data mining are summarized and then the concept of WBSDM is put forward and its main functions and meaning of research are disserted in detail. 2. The framework of web-based spatial data mining is presented. And its background, definition, features, functions, system structure, implementation strategy, key technologies and so on are illustrated systematically.

本项研究旨在总结空间数据挖掘技术和基于Web的数据挖掘技术及WBSDM的应用前景；系统地提出基于Web的空间数据挖掘框架；设计基于XML/J2EE的WBSDM平台模型；将MAS(Multi-AgentSystem)技术引入WBSDM并提出应用策略；研究基于粗糙集的空间知识库刻画模型，提出并实现高维数据的特征提取和数据浓缩算法；提出并实现基于知识库的知识发现模型；构造一个WBSDM的原型实验系统，对本文的相关研究进行验证。

While the interferometric migration method migrates cross-correlated seismic data, the data-referenced-only migration method has no such apparent procedure. It extrapolates different parts of the recorded seismic wavefields and these extrapolated wavefields are referred to each other during imaging.

地震相干偏移是用地震数据的互相关处理后的数据进行偏移，而数据自参照偏移则不必在偏移前对数据进行互相关处理，而是通过记录数据中的两个不同部分波场的延拓来互相参照进行偏移。

For the sake of the safety of the human who take the new drug to cure the diseases, and the sake of advantages of the subjects who participate the clinical trials, since 1990s when the ICH-GCP was established, amended and meliorated, clinical trials in many countries in the world have developed into a regulatory era.

为了提高国内的临床数据规范化管理水平，尽快与国际的GCP规范和先进的临床数据管理规范接轨，真正能够获取高质量的数据而进行了本次研究。研究的目的：探索国内临床试验数据规范化管理软件系统的模式，及其该类软件系统在国内临床试验数据规范化管理中的应用价值。

Because there are relative obturating among technologies of different GIS and different requests on Geo-data from different specialties, the spatial data produced by different departments with individual method is stored in different medium .

以上数据的生产过程和质量，常常只是对数据的生产者来说是透明的，而对数据的使用者却不透明，这样必然导致数据生产过程中大量的重复采集数据的工作。

ABSTRACT With the rapid development of computer and data warehouse techniques, large amount of data is stored. The rapid growth demand for extracting, understanding and assimilating useful knowledge from the growing mountains of data outpaces the traditional methods of data analysis, which leads to the emerging field of knowledge discovery in databases and data mining.

随着计算机技术和数据仓库技术的快速发展，存储的数据急剧增长，而传统的数据分析和查询方法已经不能满足人们对隐含在数据中的知识的渴求，数据库知识发现和数据挖掘应运而生，并得到迅速发展。

The electric control system of theodolite and tracking sensors' characteristics is investigated deep. Based on these characteristics and data fusion structure theory, the data fusion structure in the theodolite system is advanced. The theory method of multi-sensor data fusion is studied deep. And more, the estimate theory of data fusion is applied concretely to the theodolite with the aim of prognosticating the object state.

本文首次提出了将多传感器数据融合技术应用到光电经纬仪系统中，在深入研究光电经纬仪电控系统和跟踪传感器特性基础上，并结合数据融合结构理论，提出了光电经纬仪跟踪测量系统数据融合结构；深入研究了多传感器数据融合的理论方法，并实验研究了数据融合的估计理论在光电经纬仪中的应用，目的是实现对目标状态的预测。

Content based detection method employs Libpcap to sniffer the suspicious traffic from the scanning hosts, reassembles the TCP streams and extracts longest common substrings from those streams using suffix tree algorism.

基于扫描行为特征的检测技术、基于限速和阻断的蠕虫控制技术是基于Linux 2.4.x内核的Netfilter防火墙架构实现，通过在内核层加载钩子函数截获数据包，根据不同的控制策略对可疑的数据包进行不同力度的控制；基于内容的检测技术在网络链路层使用Libpcap监听可疑主机的数据包，通过分析TCP状态建立TCP连接表对数据包进行流重组，使用后缀树在多个数据流中寻找最长公共子串的方法提取蠕虫特征码。

Compared with 2D GIS space data model, the 3D model can be divided to four types that are tessellating model, vector model, hybrid model and analytical model.

与二维GIS空间数据模型类比，三维模型又可划分成基于镶嵌的数据模型、基于矢量的数据模型、混合型数据模型和分析型数据模型四种类型。

The system makes use of the procedure design method that face to the object in design process, renewing the data, the data inputs, the data checks to seek, the data tidies up to output with data etc.

系统在设计过程中利用面向对象的程序设计方法，将数据更新、数据输入、数据查找、数据整理与数据输出等多项功能集为一体。

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。