摘要
基于行为驱动的传统时空数据模型只关注时空对象的空间运动行为,忽略了行为对时空对象属性、关系等的改变,导致行为对时空对象的驱动机制研究不足。时空行为是全空间信息系统表达的重要特征之一,为此,本文从以下几个方面阐述了时空对象的行为。首先,本文阐述3行为的定义及将行为作为时空本体的元组的必要性。其次,研究了时空对象行为的复杂性、可继承性及在时态上的延续性等特征。再次,根据行为的作用对象,将时空对象的行为分为空间行为、属性行为、关系行为及复合行为4类行为,并给出了上述4类行为的定义与形式化表达方式。最后,分析了时空本体中时空行为的驱动机制。通过时空行为分类及其在时空本体中的形式化表达研究,为基于行为驱动的时空对象构模奠定了理论基础。
Traditional behavior-driven spatio-temporal data models mainly focus on the spatial movement property of an spatio-temporal object. However, they ignore the changes of attributive characteristics and relational properties caused by the behavior. As a result, the behavior-driven mechanism--an important feature in the pan-spatial information--has not been adequately investigated. In this paper, the spatio-temporal behavior was comprehensively investigated from the following aspects： firstly, the definition of the behavior was provided and the necessity of taking the behavior as one of the tuples of spatiotemporal ontology was demonstrated; secondly, the behavior was partitioned as 4 categories according to the changed features, including spatial behavior, attributive behavior, relational behavior and composite behavior; thirdly, definitions of the four behavior types and their corresponding formalized descriptive methods were proposed; finally, the behavior- driven mechanism in the spatio-temporal ontology was studied. This research lays a theoretical foundation for the study of spatio-temporal object model under the behavior-driven mechanism.
出处
《地球信息科学学报》
CSCD
北大核心
2017年第9期1195-1200,共6页
Journal of Geo-information Science
基金
国家重点研发计划项目(2016YFB0502300)
关键词
时空对象
行为驱动
时空本体
行为
spatio-tcmporal object
behavior-driven
spatio-temporal ontology
behavior
