查询词典 data information

Intelligent transportation ; GIS ; public information platform ; data structure ; data model ; data waterhouse

智能交通； GIS ；共用信息平台；数据结构；数据模型；数据仓库

The following results are made from this research: Assessing data quality and band combination of different bands in line with geo-target features in desertification areas, and determining basic bands for desertification monitoring. And understanding and studying the spectral features and variation rules of geo-targets in the experimental area, raising that it is the basis of geo-targets information collection with imaging spectrometer data to understand spectral features and variation rules of geo-targets, realizing that in a great extent spectral-integrated-form-based classification method can remove the phenomenon of "different spectrum with same objects" resulted from reflection ratio curve translation because of the angle change among sensor, targets and observation direction, and the average and variance images can be introduced to solve the problem of two kinds of geo-target with similar spectral forms and much different values of whole reflectionratio. It is suggested that "red edge" range bands of vegetation, which has close relationship with vegetation cover and biomass, is the main characteristic bands and important basis for careful vegetation classification and quantitative retrieval, and pixel-based derivative spectral analysis is very useful for removing the effects of soil background values and quantitatively retrieving vegetation biomass and cover. The remote sense quantitative retrieval model is developed for main appraisable factors of desertification monitoring assessment with imaging spectrometer data and then the applicability of model is analyzed.

研究结果如下：首先针对荒漠化地区的地物特征，对高光谱数据不同波段的数据质量、波段组合进行了评价，提出了适用于荒漠化监测的基本波段选择集；初步了解和掌握了研究地区的地物光谱特性及变异规律，进一步明确了掌握地物光谱特征和变异规律是用成像光谱仪数据提取地物信息的基础；发现了基于光谱整体形状的分类方法在很大程度上能够消除由于传感器、地物目标观测方向之间的角度变化引起的反射率曲线整体平移的&同物异谱&现象，对于谱形相似而整体反射率的值相差较大的两类地物，通过引入均值和方差图像参与分类得到解决；研究还表明在植被&红边&范围内的波段是进行荒漠化监测的主要特征波段，这些波段与植被生物量和盖度都有密切的关系，是开展精细植被分类研究和植被定量反演的重要基础；像元的导数光谱分析可以消除土壤背景的影响，是进行植被生物量和盖度定量反演的有力工具；建立了荒漠化监测主要评价因子的定量反演模型，并分析了模型的适用性。

In the research about ATIS traffic information fusion model and structure, the paper has introduced the data fusion technology correlation theories, including the data fusion principls, the concept and the levels, and summarized the data fusion technology in the traffic domain application and development.

在ATIS交通信息融合的模型和结构研究中，论文介绍了数据融合技术的相关理论，包括数据融合的原理、概念和层次，总结了数据融合技术在交通领域的应用与发展。

A dynamic computer simulation model of winter wheat was established from the data of the fields at AUH(the Agricultural University of Hebei) during 2000-2001 and validated from the data of the experiment of nitrogen, phosphorus and potassium at Shenze county during 1985-1986. This model was used for reference of information not only from field data but also from other winter growth and development models.

本文是参考了前人对于小麦的生长发育和钾素等生理因素的生理效应的研究，在2000～2001年度田间小区试验和1985～1986年氮、磷、钾试验的基础上，结合大田生产的实际情况，构建了钾素影响冬小麦生长发育和产量形成的计算机模拟模型。

Getting the spatial information of status, function and change, we have to develop and analysis spatial data with empirical models and process models. Spatial interpolation methods were used to estimate the characteristics of population from samples. Generally, the information are belong to bioecological information of EM. Huei-Sun Forest Experimental Station of NCHU is the study area in the study.

导出多层级间的相容性推估模式，并应用由上层族群分层取样，以得下层样本的技术且由下层之样本性态值分布，往上层推估族群之性态值分布，并以预测技术及Kriging 等空间推估方法，配合假设情境解生物生态、社会经济况改变或人为干扰时，对森生态系的况与产出所造成的影响，以提供森生态系经营管所需的生物、生态资讯。

Many studies have proved that face information consists of configural information and feature information, but there is no specifical experimental data which prove the funcitons and characteristics of feature imfomation in the facial perception.

但是已往的研究没有具体的实验数据表明特征信息在人脸知觉中的作用利特点。

Video server sends a RSVP message to reserve resource for client, and the system calculates and analyses QoS parameters using control information of RTP/RTCP packets and ICMP Echo request message, and controls the transmission grade by corresponding strategy to ensure network QoS, which enhances the system reaction to network condition and stabilizes the throughput and solves the problems of data transmission and using bandwidth fairly between multicast data and other kind of data when network is congestible and unstable.

整个模型系统主要由视频服务器、路由节点和客户端构成，通过RSVP协议进行资源预留协商，并在传输过程中利用RTP/RTCP包中携带的控制信息结合ICMP Echo请求报文提取QoS参数，对其进行分析判断，采用相应策略对传输级别进行实时控制，保障了网络QoS，提高了系统对网络状况的反应速度，降低了传输速率的波动性，较好解决了网络拥塞和不稳定时数据的有效传输以及与其他数据流公平占用带宽的问题。

WE have studied strategy to design the clinical consultive system about diseases and drugs, for example, construction of standardization, information technology, information content, information safety and some questions existing in the procession of designing data base.

本课题研究了构建医药学知识咨询系统应采取的策略，如标准化建设、信息技术建设、信息内容建设、信息安全建设，提出了数据库设计过程中的相关概念和应解决的问题。

IP multicast technology can use in ltol or 1 to n data transport by Internet Protocol, it force copy data on divaricating of the distributing tree is different from unicast technology that have to repeat send the same data from information source to every receivers.

它适用于多点到多点或一点到多点的数据传输业务，其基本原则是IP组播依托IP协议完成；IP组播强制网络在数据分布树的分叉处进行信息包复制，而不是由信息源节点多次重复地发送相同的数据包。

Data mining is an analytic skill that can analyze and find out the potential information among the original data and materials. Under data mining, the way used most frequently for prospecting original materials is decision tree of classification.According this divinable model, business can find out the relation between all attributes such as customers, products and regions etc, so that they can formulate some business management strategies like product-marketing base on these relations.

分类分析中的决策树是资料探勘技术中常被使用的一种资料探勘方法，依据已知的类别建立预测性模型，以解决类别之特性，企业可以根据这个预测性模型来找出客户属性、产品属性、地域属性等属性间的关联性，再利用这些属性间的关联性来订定产品行销等企业经营管理策略。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。