地理信息Web检索系统体系结构、原理及发展  

Architecture, Principles and Development of Geographic Information Web Retrieval

作　　者：杜萍[1] 刘勇[1] 

机构地区：[1]兰州大学资源环境学院

出　　处：《热带地理》2010年第4期392-395,400,共5页Tropical Geography

摘　　要：介绍了地理信息Web检索系统的含义、体系结构及基本原理，并重点阐述地理信息检索系统的发展，包括该领域两个重要的研讨会：GIR和GeoCLEF；讨论了地理信息Web检索系统与GoogleMaps等通用地理类搜索工具的区别，并对一个有代表性的地理信息Web检索系统SPIRIT做了详细说明；指出地理信息Web检索系统目前面临的挑战包括：地理本体的建立，页面地理信息的抽取，空间索引的建立，主题和空间双重搜索模型的运用，搜索结果的排序及搜索结果的地图可视化。There are many unstructured digital texts containing geographic information on the Web. Traditional search engines can not meet people＇s demand for these digital resources. Geographic information Web retrieval aims at providing more powerful Web search tools to satisfy people＇s double query requirements both in thematic and in geographic information. This paper first introduces the meaning, architecture and basic principles of geographic information web retrieval, then elaborated GIR＇s development, including two important workshops in this field： GIR and GeoCLEF. The paper also discusses the differences between geographic information web retrieval system and common geographic search engines such as Google Maps and Yahoo Local. A representative geographic information web retrieval system, Spatially-Aware Information Retrieval on the Internet is reviewed. Finally, the challenges which geographic information web retrieval is facing are pointed out, they include construction of geographic ontology, extraction of geographic information from web pages, building spatial index and double retrieval model, ranking search results and visualizing search results on a map.

关 键 词：地理信息Web检索 体系结构 基本原理 GIR GeoCLEF SPIRIT 

分 类 号：P208[天文地球—地图制图学与地理信息工程]