期刊名称：ISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences
印刷版ISSN：2194-9042
电子版ISSN：2194-9050
出版年度：2002
卷号：XXXIV Part 2
页码：9-12
出版社：Copernicus Publications
摘要：In this paper we discuss a particular type of search engine, Spatial Search Engine (SSE), aimed to search the World Wide Web for geographic information to meet the users' needs. We investigate the architecture of General Purpose Search Engines (GPSE), such as Alta Vista, Google, Infoseek, etc. We then analyse the mechanism of web mapping systems, which are geographical information providers on the web. After comparing SSE with GPSE, we point out the great differences between them and then argue that without the support of web mapping systems, it is impossible to fulfil the SSE. We propose a conceptual design of SSE and then propose a possible solution, a combination of Geospatial Web Services and UDDI. With Web Services, a new technology framework, formally monolithic geospatial information providers turn out to be self-contained, self-describing, modular applications that can be published, located, and invoked across the Web. With UDDI, those Geospatial Web Services can be discovered dynamically and then be accessed automatically. At the end of this paper, we discuss the advantages and shortcomings of our prototype implementation, as well as future work building upon our experiences with SSE prototype
关键词：Spatial Search Engine; Geographic Information Retrieval; Web Mapping; Web Service; UDDI
