随着Internet的发展,基于多种文字信息的维文信息也越来越多。为了获取有用的维文Web信息,必须要创建符合维文信息检索需求的搜索引擎。文章从分析维文文字的多种性、编码的多样性以及维文Web表示的特殊性等问题的基础上,探讨如何利用Go...随着Internet的发展,基于多种文字信息的维文信息也越来越多。为了获取有用的维文Web信息,必须要创建符合维文信息检索需求的搜索引擎。文章从分析维文文字的多种性、编码的多样性以及维文Web表示的特殊性等问题的基础上,探讨如何利用Google Web API来实现基于维文信息的单机版元搜索引擎。展开更多
The volume of publically available geospatial data on the web is rapidly increasing due to advances in server-based technologies and the ease at which data can now be created.However,challenges remain with connecting ...The volume of publically available geospatial data on the web is rapidly increasing due to advances in server-based technologies and the ease at which data can now be created.However,challenges remain with connecting individuals searching for geospatial data with servers and websites where such data exist.The objective of this paper is to present a publically available Geospatial Search Engine(GSE)that utilizes a web crawler built on top of the Google search engine in order to search the web for geospatial data.The crawler seeding mechanism combines search terms entered by users with predefined keywords that identify geospatial data services.A procedure runs daily to update map server layers and metadata,and to eliminate servers that go offline.The GSE supports Web Map Services,ArcGIS services,and websites that have geospatial data for download.We applied the GSE to search for all available geospatial services under these formats and provide search results including the spatial distribution of all obtained services.While enhancements to our GSE and to web crawler technology in general lie ahead,our work represents an important step toward realizing the potential of a publically accessible tool for discovering the global availability of geospatial data.展开更多
简述Delphi是Google Web API提供的一种Web服务,允许开发人员选择自己喜爱的编程语言开发应用程序,通过基于XML的SOAP信息交换协议与远程的Google服务器连接来调用Google的Web服务;通过实例详细介绍用Delphi和GoogleWeb API开发搜索引...简述Delphi是Google Web API提供的一种Web服务,允许开发人员选择自己喜爱的编程语言开发应用程序,通过基于XML的SOAP信息交换协议与远程的Google服务器连接来调用Google的Web服务;通过实例详细介绍用Delphi和GoogleWeb API开发搜索引擎的方法和步骤。展开更多
从电子商务环境下服装供应链管理的需求出发,分析了目前服装搜索引擎存在的问题,提出了基于语义Web服务的分布式服装商品搜索引擎系统模型,并讨论了它的体系结构。介绍了基于Ontology Web Language(OWL)的服装本体设计模型及其语义描述...从电子商务环境下服装供应链管理的需求出发,分析了目前服装搜索引擎存在的问题,提出了基于语义Web服务的分布式服装商品搜索引擎系统模型,并讨论了它的体系结构。介绍了基于Ontology Web Language(OWL)的服装本体设计模型及其语义描述方法。分析了服装搜索引擎的基本功能及分布式环境下的Web Services(WS)合成。理论分析和实例原型说明了基于服装语义树的搜索引擎多关键词搜索效率明显高于全文搜索引擎。展开更多
文摘随着Internet的发展,基于多种文字信息的维文信息也越来越多。为了获取有用的维文Web信息,必须要创建符合维文信息检索需求的搜索引擎。文章从分析维文文字的多种性、编码的多样性以及维文Web表示的特殊性等问题的基础上,探讨如何利用Google Web API来实现基于维文信息的单机版元搜索引擎。
文摘The volume of publically available geospatial data on the web is rapidly increasing due to advances in server-based technologies and the ease at which data can now be created.However,challenges remain with connecting individuals searching for geospatial data with servers and websites where such data exist.The objective of this paper is to present a publically available Geospatial Search Engine(GSE)that utilizes a web crawler built on top of the Google search engine in order to search the web for geospatial data.The crawler seeding mechanism combines search terms entered by users with predefined keywords that identify geospatial data services.A procedure runs daily to update map server layers and metadata,and to eliminate servers that go offline.The GSE supports Web Map Services,ArcGIS services,and websites that have geospatial data for download.We applied the GSE to search for all available geospatial services under these formats and provide search results including the spatial distribution of all obtained services.While enhancements to our GSE and to web crawler technology in general lie ahead,our work represents an important step toward realizing the potential of a publically accessible tool for discovering the global availability of geospatial data.
文摘简述Delphi是Google Web API提供的一种Web服务,允许开发人员选择自己喜爱的编程语言开发应用程序,通过基于XML的SOAP信息交换协议与远程的Google服务器连接来调用Google的Web服务;通过实例详细介绍用Delphi和GoogleWeb API开发搜索引擎的方法和步骤。
文摘从电子商务环境下服装供应链管理的需求出发,分析了目前服装搜索引擎存在的问题,提出了基于语义Web服务的分布式服装商品搜索引擎系统模型,并讨论了它的体系结构。介绍了基于Ontology Web Language(OWL)的服装本体设计模型及其语义描述方法。分析了服装搜索引擎的基本功能及分布式环境下的Web Services(WS)合成。理论分析和实例原型说明了基于服装语义树的搜索引擎多关键词搜索效率明显高于全文搜索引擎。
