摘要
大数据时代引发的数据增长以及地理空间数据的开放为地理空间数据的应用带来了便利,但数据的可用性难以评判,为了实现数据的优化利用,需要对开放式地理空间数据的可用性进行评价。本文针对开放式地理空间数据的特点以及数据可用性的相关内容,选取数据数学精度、数据时间精度、数据完整性与正确性、逻辑一致性、元数据质量、数据权威性、数据适用性以及数据可获得性作为评价指标,建立一种开放式地理空间数据可用性评价方法,并以西安市开放街道地图道路数据为例进行可用性评价,结果表明,该方法能有效地评价开放式地理空间数据的可用性。
Aimed at the characteristics of open geospatial data and relative content in data usability,a usability evaluation method of open geospatial data has been constructed based on the following indexes,namely math accuracy,temporal accuracy,integrity and validity of data,logical consistency,quality of metadata,authority of data,applicability and accessibility of data.This Method has been proved to be effective in usability evaluation of open geospatial data,in case study of open street map road data in Xi＇an.
作者
李亚平
蔡忠亮
谢彩云
王淼
LI Yaping CAI Zhongliang XIE Caiyun WANG Miao(School of Resource and Environmental Sciences, Wuhan University, Wuhan 430079,China Key Laboratory of Geographic Information Systems, Ministry of Education, Wuhan University , Wuhan 430079,China Beijing Changdi Wangfang Co. , Ltd. Foshan Branch, Foshan 528305,China Beijing Institute of Surveying and Mapping, Beijing 100038, China)
出处
《测绘地理信息》
2017年第1期83-87,共5页
Journal of Geomatics
基金
国家自然科学基金资助项目(41501186)
