【摘要】 近十年来,地理信息科学信息基础设施的基础理论与应用研究逐步深入,空间数据溯源成为其中的一个基础问题。该文介绍了数据溯源的研究背景,阐述了空间数据溯源的基本概念,详细描述了空间数据溯源的研究内容和研究领域,从模型、层次、粒度等方面探讨了空间数据溯源的关键研究问题,并给出了空间数据溯源服务原型系统实现。更多还原

【Abstract】 With the development of Geo-Cyberinfrastructure in the last decade,geospatial data provenance becomes a fundamental research issue.This paper introduces the background of data provenance,describes the concept of geospatial data provenance,and summarizes general considerations and state-of-art literature.It then proposes key considerations of geospatial data provenance including model,aspects,and granularity.Provenance at the workflow,dataset,feature,and pixel levels are presented.A geospatial service system that can accommodate these different levels of provenance is presented.The prototype system illustrates the applicability of the approach.更多还原