摘要
介绍了地理空间元数据服务、信息可视化、双曲线树等相关概念,分析了传统地理空间元数据服务在服务模式及服务效率上存在的缺陷。为了提高地理空间元数据服务的效果和效率,通过引入信息可视化技术中的双曲线树方法,探究将该方法运用于地理空间元数据可视化检索的显示模式,以及检索关键词与检索结果相关程度的优化显示方法,阐述了基于双曲线树的地理空间元数据可视化检索原型系统的设计实现过程,通过原型系统验证了该方法的可行性。
Some concepts were introduced, such as geo-spatial metadata service, information visualization, hyper-bolic tree at first. In order to increase efficiency of geo-spatial data retrieval, the hyperbolic tree of information vi-sualization were used. And the display mode of hyperbolic tree used to geo-spatial metadata visualization retrieval, and the optimization method based on the relevance of retrieval keywords and search results were presented. At last, the design and implementation of ge-spatial metadata retrieval visualization prototype system based on hyper-bolic tree was discussed. And the method’ s feasibility was validated by the prototype system.
出处
《测绘科学技术学报》
CSCD
北大核心
2014年第3期300-304,共5页
Journal of Geomatics Science and Technology
基金
国家自然科学基金项目(41371382
41101437)
国家863计划项目(2013AA12A202)
关键词
双曲线树
地理空间元数据
可视化检索
信息可视化
元数据服务
hyperbolic tree
geo-spatial metadata
visualization retrieval
information visualization
metadata serv-ice
