多源空间矢量数据可用性评估方法设计  

Design of Evaluating Method for Multi-source Spatial Vector Data Usability

作　　者：陈换新[1,2] 孙群[1] 李少梅[1] 马超[1] 

机构地区：[1]信息工程大学地理空间信息学院 [2]96633部队

出　　处：《武汉大学学报（信息科学版）》2017年第5期676-682,共7页Geomatics and Information Science of Wuhan University

基　　金：国家863计划(2012AA12A404);国家自然科学基金(41201391;41071297;41201469);地理信息工程国家重点实验室开放基金(SKLGIE2013-Z-4-1;SKLGIE2013-M-4-5)~~

摘　　要：随着空间数据获取手段的进步和数据质量研究的深化,考虑用户需求、辅助数据使用决策的空间数据可用性评估研究开始受到关注。在阐述空间数据可用性概念和介绍代表性研究方法的基础上,考虑不同的因素对现有方法进行了比较分析。针对现有方法的缺陷,设计了多源空间矢量数据可用性评估的方法,并阐述了其中的关键环节和解决方案。Spatial data usability research focuses on user requirements and assists them in data use de- cision-making with the progress of spatial data acquisition approaches and development of data quality studies. This paper explores the concept of spatial data usability, and analyzes the existing methods and study methods , according to different factors. Overcoming the limiations of existing methods, combing the professional of expert decision making and computer efficiency, an evaluation method for multi-source spatial vectordata usability is presented. Data integration is used to solve the differences between multi-source spatial vector data, which provides the platform for consistent processing and usability evaluation. A usability evaluation of content is confirmed according to the subject area. The paper discusses the evaluation of geometric and descriptive data, evaluating data usability from the qualitative and quantitative perspective and also from whole to part. Visual analytics are introduced to present evaluation results for multi-source spatial vector data usability, which can help users explore different aspects and details of spatial vector data, and plan thief data use.

关 键 词：空间数据 多源空间矢量数据 可用性 评估方法 

分 类 号：P208[天文地球—地图制图学与地理信息工程]