时空数据模型是时空数据库的研究重点之一。
Data model is one of the central activities in the research of spatiotemporal database.
提出了基于属性簇的时空数据聚集查询算法。
In this paper, based-on attribute-cluster, a new spatiotemporal data aggregation query algorithm is proposed.
最后通过对时空数据的操作为例进行了实验模拟。
In the end, it realized the data modeling through the data operation.
基态修正模型是目前应用较广的一种时空数据模型。
The base state with amendments model is used widely as a spatiotemporal data model.
应用水文时空数据模型显示降雨数据的时空变化过程。
Then, the model is employed to visualize the spatiotemporal variation of rainfall data.
因此本文研究了等高线的时空数据组织与局部更新问题。
The organization and update of contour's spatiotemporal data is an important part of spatiotemporal data updating.
海量时空数据组织是下一代GIS平台所要解决的关键技术。
Massive spatiotemporal data organization in new generation GIS platform is a key technique.
连续近邻查询(CNN)是时空数据库中一种重要的查询类型。
Continuous nearest neighbors (CNN) inquiry is important in spatial-temporal database.
受限网络中的时空索引是解决此类时空数据管理问题的关键所在。
The spatiotemporal index for the constraint network is one of the key issues in this field.
在时空数据库中，地理实体模型包括地理对象空间信息和时态信息。
In spatiotemporal database, geographic entity model includes spatial and temporal information of geographic object.
本文在基态修正模型的基础上，对时空数据更新和查询的方法进行探讨。
In this paper, the author studied the methods of spatiotemporal data updating and query on the basis of base state with amendments model.
已有的时空数据库研究集中在模型和语言上，缺乏时空数据库的系统实现。
The previous researches on spatiotemporal databases were concentrated on data models and languages, they are not the implementation of spatiotemporal database systems.
利用时空数据集的单点查询方法，组成了一种比较朴素的时空连接的算法。
The contributions of this paper are as the followings:(1) A simple spatial join algorithm is constructed by the single point query for spatiotemporal datasets.
时空数据库管理系统是能够同时处理时态数据和空间数据的数据库管理系统。
Spatio-temporal database management system is a kind of DBMS that can deal with both spatial and temporal data.
但对于不同的时空数据模型，时空数据更新处理和查询的方法存在很大差异。
However, for different spatiotemporal data models, there is a big difference on spatiotemporal data updating and query approaches.
时空数据挖掘是数据挖掘中的重要研究内容，其中时空预测的应用领域最为广泛。
Spatio-temporal data mining is an important research topic in data mining, and in which spatiotemporal forecasting is the most widely used.
交通流量的时空数据挖掘需要完整的数据，因此必须处理交通流量数据中的缺失值。
Missing values in traffic flow data should be imputed because complete data are needed for space-time data mining.
本文引入面向对象的时空数据模型，把各种实体作为对象，把道路作为面状要素描述。
The paper introduced object oriented spatiotemporal data model, looked on all kinds of things as objects and described road as face shape element.
着重介绍了一个基于这种时空数据结构的时域地籍信息系统的系统结构、组织及功能。
It introduces the system structure, system organization, and system function of a temporal cadastral information system based on this kind of spatiotemporal data structure.
本文在分析社会经济统计数据时空特点的基础上，提出了社会经济统计时空数据模型。
On the base of analyzing temporal-spatial characteristics of the social and economic statistical data, the paper puts forward a temporal-spatial data model of social and economic.
地理特征对象是时空数据组织的基本单元，而事件是导致时空数据发生变化的根本原因。
The feature is an essential element that comprises spatiotemporal data information and the event is a fundamental factor that result in changing spatiotemporal data.
为了满足时空数据库设计的需要，提出了新的时空er模型并给出了相关的概念及设计方法。
In order to adapt to the design requirement of spatiotemporal database, this article proposes a new spatiotemporal er enhanced model and introduces its relevant concept as well as design method.
通过以上研究，对本文所做的工作进行了总结，对时空数据动态可视化发展前景提出了展望。
Through the research all above, the paper summarizes all works which have been done, and presents the prospects of the Spatio-temporal dynamic visualization.
本文提出了基于状态-事件的时空数据模型，并系统阐述各时空数据模型之间的相互转换条件。
In this paper, a new spatial-temporal data model based on state-event is presented, and the qualifications for conversion between spatial-temporal data models are analyzed.
基于基态修正模型以及对象版本管理的思想，提出用于动态道路网络数据管理的时空数据模型。
A spatiotemporal data model is proposed to represent dynamic road networks based on base State with Amendments model and object-version management theories.
讨论了基于特征的概念模型要素及相互关系；提出了基于特征的时空数据模型所面临的关键技术。
The conceptual modeling elements and mutual relations between them are discussed and some key technical problems are identified in the development of feature based temporal - spatial data models.
给出了时空数据模型的设计、历史沿革追溯与时间断面复原算法的分析，以及算法实现中的关键部分。
This paper shows the design of spatial-temporal data structure, the analysis of methods of history information backward recovering, and some example of important programming.
目前，国际上对于作为时空数据模型概念和形式化基础的时空拓扑关系定义和描述还没有一个明确的阐述。
At present, there isn't a clear definition and description of spatiotemporal topological relationships which is a conceptual and formal basis of spatiotemporal data model.
目前，国际上对于作为时空数据模型概念和形式化基础的时空拓扑关系定义和描述还没有一个明确的阐述。
At present, there isn't a clear definition and description of spatiotemporal topological relationships which is a conceptual and formal basis of spatiotemporal data model.
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