分布式倒排索引的地理信息服务搜索方法研究  

Research on Geographical Information Service Search Algorithm Based on Distributed Inverted Index

作　　者：成毅[1,2] 葛文 郑仲 陈科[1,2] 

机构地区：[1]信息工程大学 [2]国土资源部地质信息技术重点实验室 [3]65014部队

出　　处：《测绘科学技术学报》2014年第1期79-83,共5页Journal of Geomatics Science and Technology

基　　金：国家自然科学基金项目(41271392)

摘　　要：为解决地理信息服务分布式目录服务系统中的服务查找问题,提出了基于分布式倒排索引的地理信息服务搜索方法。设计了包含词汇语义相似度的地理信息服务倒排索引结构并建立了倒排索引,讨论了顾及索引键的同义概念和父辈概念的倒排索引更新方法,然后给出了使用倒排索引搜索地理信息服务的算法。通过水平划分和垂直划分两种方式建立了分布式地理信息服务的全局索引,给出了基于分布式倒排索引的地理信息服务搜索方法,实验验证了方法的效率。In order to solve the problem of service search in the geographical information service distributed catalog system, the geographical information service search method based on distributed inverted index was promoted. The structure including lexical semantic similarity of geographical information service inverted index was designed and the inverted index was established. The inverted index update method which considering the synonymy and hypernym concept of index key was discussed. Then the method and arithmetic of searching geographical information service using inverted index was given. The distributed geographical information service whole index was established by horizontal and vertical partition mode. The geographical information service search method based on distributed inverted index was given. Finally, the experiments was done to practice and analyze the method.

关 键 词：地理信息服务 相似度 倒排索引 服务搜索 分布式 

分 类 号：P208[天文地球—地图制图学与地理信息工程]