共查询到10条相似文献，搜索用时 140 毫秒
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文章概述了语义Web的研究背景、研究价值及现有语义Web模型,阐述了语义Web于本体论的关系,对W3C组织的语义Web研究现状和语义Web研究领域国内外当前的研究状况进行了分析,总结了未来语义Web基础研究和应用研究的方向。 相似文献
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构建语义化知识服务系统是数字图书馆在语义Web环境下的发展方向。针对目前各种语义Web技术在数字图书馆开发应用的现状和问题,本研究融合国际基于Topic的语义知识组织技术,结合国内的需求,提出了“语义主题模型”,目标为构建可实施的语义化知识系统。文章首先对以“概念化主题、主题关联、语义标签”为内涵的“语义主题化模型”概念进行定义;其次,设计基于此模型的语义化知识系统框架;再次,对相关应用进行了探讨;最后,对未来开发工作进行了规划。 相似文献
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Web hyperlink analysis has been a key topic of Webometric research. However, inlink data collection from commercial search engines has been limited to only one source in recent years, which is not a promising prospect for the future development of the field. We need to tap into other Web data sources and to develop new methods. Toward this end, we propose a new Webometrics concept that is based on words rather than inlinks on Webpages. We propose that word co-occurrences on Webpages can be a measure of the relatedness of organizations. Word co-occurrence data can be collected from both general search engines and blog search engines, which expands data sources greatly. The proposed concept is tested in a group of companies in the LTE and WiMax sectors of the telecommunications industry. Data on the co-occurrences of company names on Webpages were collected from Google and Google Blog. The co-occurrence matrices were analyzed using MDS. The resulting MDS maps were compared with industry reality and with the MDS maps from co-link analysis. Results show that Web co-word analysis could potentially be as useful as Web co-link analysis. Google Blog seems to be a better source than Google for co-word data collection. 相似文献
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用Delphi和Google Web API开发自己的搜索引擎 总被引：1，自引：0，他引：1
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。 相似文献
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应用正则式抽取Google网页内容 总被引：3，自引：0，他引：3
正确、完整地抽取搜索网页的内容，是对检索到的信息进行处理的基本前提。本文分析了Google网页的结构特征，给出了一组匹配Google网页内容的正则式，并用Visual C# 实现了一个内容抽取器。对多个Google网页的实际应用表明，本文提出的正则式匹配方法可以抽取Google网页的全部主要内容。 相似文献
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Dale Askey 《图书馆管理杂志》2015,55(1):49-59
Google is the single largest driver of traffic to library Web sites and digital repositories, and librarians would do well to listen when the search giant reveals information about its practices or makes recommendations. Recently, Google announced that it would begin to favor Web sites that use the secure hypertext transfer protocol (HTTPS) in its search results rankings. HTTPS encrypts data transmission and one of Google's stated reasons for this change is to help make the Web safer and minimize data theft. Similar announcements by Google have sometimes been ignored by librarians, to the peril of the visibility and use of library products and services on the Web. 相似文献
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PageRank算法的原理简介 总被引：9，自引：0，他引：9
在介绍PageRank算法基本思想、基本公式和计算实例的基础上,介绍如何利用PageR- ank算法提高网页PR的方法,最后指出PageRank算法存在的不足,并对其发展趋势进行分析。 相似文献
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基于语义网技术构造知识服务系统 总被引：7，自引：0，他引：7
语义网的兴起,为知识服务系统的发展提供了巨大的动力。而知识管理的思想运用于语义网建设,又将为用户提供基于知识的Web服务。因此,语义网技术作为下一代Web的核心技术,知识服务作为信息服务的发展趋势,两者的相互结合将是可行而必要的,肯定会为知识服务的研究与发展开辟新的道路。本文阐述了语义网技术在知识服务中的角色,探讨了语义网与知识服务系统结合的应用前景,并论述了基于语义网技术构造知识服务系统的主要实现模式 相似文献