基于显／隐式表达的时空模型分类  

Classification of spatiotemporal models based on implicit and explicit expressions

作　　者：尹章才[1] 李霖[2] 应申[2] 

机构地区：[1]武汉理工大学资源与环境工程学院 [2]武汉大学资源与环境科学学院,湖北武汉430079

出　　处：《武汉大学学报（工学版）》2008年第1期100-103,共4页Engineering Journal of Wuhan University

基　　金：湖北省自然科学基金项目(编号:2006ABA322,2007ABA322);国家测绘局重点实验室基金项目(编号:1469990424233)

摘　　要：根据时空对象与时空拓扑关系的显/隐式表达模式,提出了一种新的时空数据模型的分类方法.将时空模型分为时空对象与时空关系,其中时空对象包括事件与状态两种原子,时空关系包括事件之间关系、状态之间关系、事件与状态之间关系等三种基本关系;时空表达分为显式、隐式、半显半隐式三种模式.基于显隐式表达的时空模型分类系统采用时空对象、时空关系与时空表达的三元组结构描述,并列举了典型的时空数据模型,为用户选择满足不同应用需求的时空模型提供了理论依据.A classification scheme for spatiotemporal data model is put forward according to the representation approaches used to organize spatiotemporal data. The spatiotemporale model is composed of the spatiotemporal object and the spatiotemporal relationship. The spatiotemporal object is described with the event and state; and the spatiotemporal relationship is described with the relationships between events, between states, between event and state. The spatiotemporal representation is described with implicit, explicit, half-implicit or half-explicit expressions. The classification scheme is presented with the spatiotemporal object, the spatiotemporal relationship and the spatiotemporal representation. This work is regarded as a guide and consults for consequent modeling.

关 键 词：时空对象 时空数据模型 时空关系 时空分类 

分 类 号：P208[天文地球—地图制图学与地理信息工程]