双曲线树在地理空间元数据可视化检索中的应用研究

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.