地球信息科学学报 ›› 2017, Vol. 19 ›› Issue (9): 1171-1177.doi: 10.3724/SP.J.1047.2017.01171

• 全空间信息系统理论方法 • 上一篇    下一篇

基于时变网络的多粒度时空对象关系演化过程表达与建模

李冬双1,2(), 刘袁1,2, 石格格1,2, 俞肇元1,2,3,*()   

  1. 1. 南京师范大学地理科学学院,南京 210023
    2. 南京师范大学 虚拟地理环境教育部重点实验室,南京 210023
    3. 江苏省地理信息资源开发与利用协同创新中心,南京 210023
  • 收稿日期:2017-05-10 修回日期:2017-08-04 出版日期:2017-10-09 发布日期:2017-10-09
  • 通讯作者: 俞肇元 E-mail:lds19921120@163.com;yuzhaoyuan@163.com
  • 作者简介:

    作者简介:李冬双(1992-),女,湖北十堰人,博士生,主要从事地理建模与分析方面研究。E-mail: lds19921120@163.com

  • 基金资助:
    国家重点研发计划项目(2016YFB0502300);国家自然科学基金项目(41571379)

The Expression and Modeling of Relationship Evolution of Spatio-temporal Objects of Multi-granularity based on Time-dependent Network

LI Dongshuang1,2(), LIU Yuan1,2, SHI Gege1,2, YU Zhaoyuan1,2,3,*()   

  1. 1. College of Geographic Science, Nanjing Normal University, Nanjing 210023, China
    2. Key Laboratory of Virtual Geographic Environment, Ministry of Education, Nanjing Normal University, Nanjing 210023, China
    3. Jiangsu Provincial Center for Collaborative Innovation in Geographical Information Resource Development and Application, Nanjing 210023, China
  • Received:2017-05-10 Revised:2017-08-04 Online:2017-10-09 Published:2017-10-09
  • Contact: YU Zhaoyuan E-mail:lds19921120@163.com;yuzhaoyuan@163.com

摘要:

对空间事物的表达与研究模型主要针对多粒度时空数据本身的描述,而不是描述多粒度时空对象的相关性。多粒度时空对象是一种新的时空对象表达方法,其中时空对象关系的演化过程是一种抽象的复杂的网络的过程。本文在多粒度时空对象表达的基础上,对其演化过程进行形式化定义,提出以时变网络的方法构建初步的关系演化过程模型。通过对基于时间切片的退耕还林演化过程关系的描述与表达,形成动态实时变化的网络模型,从而抽象表达退耕还林过程中的对象关系的演化过程。应用时变网络明确多粒度时空对象关系的演化过程,并对演化过程进行初步的表达和建模,可以使对象关系变化更加清晰化,提高其层次性和效率性,为今后研究多粒度时空对象关系变化规律奠定基础。

关键词: 时变网络, 多粒度时空对象关系, 演化过程

Abstract:

The modern expression and modeling of spatial objects is more related to the description of spatial and temporal data of multi-granularity than the correlation of spatio-temporal objects of multi-granularity. Multi-granularity expression of spatio-temporal object is a new method of expressing the temporal and spatial objects. The evolution of spatio-temporal objects is abstracted as a complex network. In this paper, based on the representation of spatio-temporal objects of multi granularity, the evolution process is formally defined. We present an initial model for constructing the process of relationship evolution with time-dependent network. In this paper, through the description and expression of the relation with the evolution process of returning farmland to forest based on time slices, we construct a dynamic and real-time network model and abstract the evolution process of object relationship of returning farmland to forests. We applied time-dependent network to clarify the evolutionary process of spatio-temporal object of multi-granularity relations, and initial expression and modeling of the evolution process. This method can make the object relation change more clearly, improve its hierarchy and efficiency, and lay the foundation for the study of the relationship of spatio-temporal objects of multi-granularity.

Key words: time-dependent network, spatio-temporal relationship of multi-granular, evolution processes