数据

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 of data mining algorithm, the more influential one is associational rule finding algorithm.

在数据挖掘算法的研究中，比较有影响的是关联规则发现算法，它是数据挖掘研究的一个重要分支，也是数据挖掘的众多知识类型中最为典型的一种。

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 technique of massive scale data management and attemperation based on viewpoint. This algorithm effectively changes massive scale terrain into large scale ones to handle. Utilising the continuity of the viewpoint movement and the relativity of fore-and-aft frames, it manages and attempers the terrain data leading to data decrease in a large range. This algorithm solves the problem of the rendering rate, and realizes a rapid real-time ramble in massive scale terrain scenes.

提出了一种基于视点的场景数据管理调度技术，有效地将海量地形转换为大规模地形进行处理，并利用视点运动的连续性和前后帧的相关性，管理调度地形数据，大幅度地降低了数据量，解决了绘制速度的问题，实现了海量地形场景的实时快速漫游。

A great amount of data from aviatic and performance parameters are recorded by the quick access recorder equipped on scheduled flights.

民航班机的快速存取记录仪记录了大量的飞行和性能参数，QAR数据的约简是对这些数据进行数据挖掘的一个重要环节。

MB-System software packet is a new tool running in Linux for processing the multi-beam bathymetric data,which can edit the original and the beam data flexibly and display the results with its powerful plotting function.

MB-System软件包是一套运行于L inux系统下的针对多波束测深数据处理的软件工具，它可以对原始数据和波束数据进行灵活编辑，并利用强大的绘图功能对结果进行显示。

Fledermaus Professional is used in a variety of applications such as swath bathymetry editing and quality control, marine construction, military applications, and coastal zone mapping.

全新的数据挖掘技术包括ShiftScape漫游引擎和Bat（3维输入设备），用以完成直观的3维地理信息数据的挖掘与分析。该系统广泛支持大量工业数据格式的直接输入。

A revised simple binning strategy is presented by taking the representative gravity point of the data in a bin instead of the center of the bin. This improvement enables the simple binning strategy to monitor the distribution.

本文提出了一种修正简单分箱核估计误差的方法，该方法采用数据重心取代分箱中心作为数据的代表点，能够更准确反映数据的局部分布特征。

Firstly, working on the data model of temporal-relation, a bitemporal data model on object-relation is proposed in this paper, which may be implemented in current object-relational databases.

首先在现有时态关系数据模型基础上，提出了一种基于对象关系双时态数据模型，而这种数据模型适合于在现有数据库平台上实现；其次，在该模型框架内，讨论了时态对象关系模式与时态关系模式相互间的联系与转换，这也是由时态关系扩充到对象关系的基本要求：再次，分析了时态模型中时态变量复杂语义和相应绑定算法，这是时态数据库能够有效运行的基本课题

Data management with Visual FoxPro and data computation with MicrosoftFortran were realized in Estimating BLUP's breeding value and computing inbreedingcoefficient.

在BLUP法育种值估计和计算近交系数中，系统利用Visual Foxpro进行数据准备、整理和Microsoft Fortran进行计算，并通过链接达到数据计算结果与Visual ForPro数据管理的统一。

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。