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1.
语义网是设想中的下一代万维网。其基本思想是在网别言息的创作和发布中嵌入机器可理解的、代表某类知识的元数据,使计算机具备更强的能力去协作性地“理解”和处理现在仅仅是进行显示的数据。从信息组织的视角看,其最终目标是要将人类知识编织成一个巨大网络,并以机器处理的方式来实现它。也可以说,是要将现在的万维网改造成一个存取便捷的巨大知识空间,万维网的潜力因此被充分挖掘。知识经济时代,语义网的意义不言而喻。  相似文献   

2.
实用分类系统与语义网:发展现状和研究课题   总被引:24,自引:1,他引:24  
语义网(Semantic Web)是当前因特网的延伸,在语义网中信息被赋予清晰的定义与含义,因而计算机和人可以更好地合作。语义网的目标是要充分发挥因特网的潜力,最终使技术能够让机器支持全球化的知识交流。实现语义网的核心是对实用分类系统(ontologies)的开发和利用。实用分类系统已经远远超出图书馆学、哲学、知识表述的范畴,图书馆、信息产业、工商业都在注视语义网技术的开发和应用。研究结果表明,实用分类系统在支持电子商务的浏览和检索与知识管理配置的可互操作性方面起着关键的作用。本文针对目前语义网的发展和实用分类系统的技术,对其应用领域、主要技术和标准、研究项目、发展动向作一综述和评论,并介绍在语义网方面的几个主要研究课题。  相似文献   

3.
编者的话     
语义网是设想中的下一代万维网。其基本思想是在网络信息的创作和发布中嵌入机器可理解的、代表某类知识的元数据,使计算机具备更强的能力去协作性地“理解”和处理现在仅仅是进行显示的数据。从信息组织的视角看,其最终目标是要将人类知识编织成一个巨大网络,并以机器处理的方式来实现它。也可以说,是要将现在的万维网改造成一个存取便捷的巨大知识空间,万维网的潜力因此被充分挖掘。知识经济时代,语义网的意义不言而喻。  相似文献   

4.
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  
曾铮 《情报学报》2005,24(3):336-340
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   

5.
语义网由万维网、URL、HTrP及HTML的创始人TimBemers首先提出,他认为语义网“是对现有网络的延伸,在语义网中信息可以被赋予准确的定义,使计算机和用户更好的协同工作”。W3C的定义为,语义网提供了允许数据在应用层、企业和共同体范围内共享和重复利用的通用框架,  相似文献   

6.
语义网信息组织机制论纲   总被引:3,自引:1,他引:3  
语义网是设想中的下一代万维网,对语义网的研究将推动网络信息资源的组织,使网络信息组织向知识组织发展。 Ontology是语义网的语义基础,是网络时代理想的检索语言。Ontology与XML、RDF(s)共同构成了语义网的信息组织机制,对此机制展开逻辑分析具有重要意义。  相似文献   

7.
论述数据库技术、ontology、语义网等网络资源组织技术是现代信息组织的主体技术,传统分类法的现代化改造可以汲取关系数据库、Web数据库技术的多维属性处理技术,提高其处理具体对象与事务的能力。同时,指出可以借鉴ontology、语义网等的分类技术和词语定义方法,提高传统分类法适应机器处理的功能。  相似文献   

8.
在元数据标准框架基础上用XML构建语义网   总被引:3,自引:0,他引:3  
语义网是对网上信息语义及其之间各种联系的描述,可以提高计算机对各种信息的分析和处理能力,是下一代互联网的一个发展方向。文章首先介绍了语义网的基本概念及应用,然后描述了元数据的概念并重点介绍了RDF及其应用,最后提出要综合运用XML和RDF构建语义网。  相似文献   

9.
介绍了当前数字图书馆信息服务中存在的局限性,阐述了语义网技术的层次结构,分析了语义网在数字图书馆中的应用优势,并对语义网环境下数字图书馆的几种信息服务模式进行了探讨。  相似文献   

10.
自语义网概念提出以来,SPARQL Endpoint作为语义网时代特有的一种服务,其发展呈现出独特的特征。文章围绕SPARQL Endpoint在用户交互及信息呈现方面存在的问题,从SPARQL Endpoint的背景与工作原理出发,对其用户需求表达交互、信息呈现以及系统功能性指标等三个方面的技术进行了对比和分析,并总结了它们的服务特点。  相似文献   

11.
This article surveys a sample of sources of the information about Romania available to British readers in nineteenth century British newspapers and periodicals. It traces first contacts between the Romanian lands and Britain after the union of the principalities of Wallachia and Moldavia in 1859, then after their independence from the Ottoman Empire. The article highlights an increased Romanian interest in British periodicals, which reported and reviewed Romanian literature and scholarship. The article concludes that nineteenth century British newspapers and periodicals offer a great variety and wealth of new material previously unavailable or unknown to researchers. It also states that only a portion of a large quantity of this material has been indexed and is therefore available via the bibliographic sources mentioned in the article. The author argues for the need of a new and updated British-Romanian bibliography, which can draw on new online resources offering access to thousands of new newspapers and periodical records.  相似文献   

12.
ABSTRACT

In today's current political environment raising support for millage renewals, bond campaigns or even millage continuations for public libraries is affected by national politics, and a tendency towards tax aversion on principle across the country. The lessons we can learn from the governing boards of small and rural public libraries are worth raising up to a greater national consciousness. Board governance, community consciousness, and facilities management are clear and logical tools that elected boards of public libraries can use to politick for support of libraries.  相似文献   

13.
ABSTRACT

The paper looks at library approval plans for material published in Slavic, East European, and Eurasian countries from the selector's point of view. Reasons why a selector would or would not want one are examined. Success with approval plans requires monitoring receipts, as well as good and ongoing communication among the selector, the acquistions department, and the vendor. A preliminary list of vendors offering approval plans for the countries of the region appears in the appendix.  相似文献   

14.
ABSTRACT

The article examines the most important periodicals of ethnic minorities in Poland. After 1989, many ethnic groups (e.g., Germans and Romanies) were allowed to publish journals and newspapers for the first time since the end of World War II. The publications examined show the rich cultural life of the various ethnic groups as well as their current status in Poland. In addition to popular titles, some scholarly publications are also discussed.  相似文献   

15.
为进一步提升武汉科技信息共享服务平台使用效率,本文从平台资源建设、资源应用、供需对接方式和供需特点等方面分析了武汉科技信息资源服务现状;基于需求和利用的角度,结合平台管理实践和走访用户、问卷调查等研究方法,从信息资源需求主体和平台自身建设管理两个维度,找出制约科技资源供需对接的主要因素;以市场化和制度化为创新理念,从政策创新、机制创新、市场化服务、环境营造、人才培养等方面提出平台建设由“资源集聚”向“需求导向”转变的对策建议.  相似文献   

16.
The author answers a reference question on bibliographic sources for the Ukrainian periodical press 1840–1850. Helpful publications include bibliographies, guides, and library catalogs. These potentially make mention of revolutionary developments in Hungary (such as the Twelve Points paragraph of the Demands of the Hungarian Nation in March 1848, the subsequent April Laws, and Hungary's declaration of independence in April 1949), and elsewhere in the Hapsburg Empire.  相似文献   

17.
ABSTRACT

The history of the almanac in Croatia is reconstructed through primary research in bibliographic and archival sources. The almanac is a vehicle for knowledge communication in informal contexts, engaging both oral tradition and literary forms traceable to medieval literacy and ways of structuring knowledge. The history of the almanac in Croatia reflects the changing context of the book trade, literacy, and the evolution of language. Four main stages are identified: (1) the beginning of the annual almanac in the seventeenth century; astrological almanacs reflecting the sensibility of the Baroque period; (2) the Enlightenment's stimulation of almanac publishing in the spirit of contemporary secular reforms in agriculture and education; (3) nineteenth-and twentieth-century almanac trade, showing complex and overlapping networks for the production, distribution and appropriation of printed almanacs;(4) roughly the end of World War II, when the almanac slowly moved out of the role of a popular mass medium and into specialized niches represented by regional, diaspora, and religious almanacs.  相似文献   

18.
This essay investigates key moments in the history of personal digital assistant (PDA) marketing to women. Analyzing promotional texts for three PDAs that received considerable press coverage from 1999 to 2001, this essay explores the cultural significance of the convergence of anxieties about women's place in the gendered division of labor with the computer industry's changing marketing imperatives. Drawing on an array of promotional texts, including news articles, press releases, promotional Web sites, and ads appearing in newspapers and magazines, this paper tells the story of how the computer industry aimed to sell smaller, faster computing devices to women while promising to mediate and thus reproduce women's overwork as paid and familial laborers. After experimenting with the PDA as a sexy fashionable gadget for working women, marketers approached women as mothers with “Audrey,” an Internet appliance designed for the kitchen.  相似文献   

19.
Some key questions for publishers in today’s market are: Could Amazon’s recent merger and acquisitions strategy create a disruptive or paradigm shifting business model in the publishing industry? Do their recent actions post mergers and acquisitions illustrate a predicable pattern of behaviour that publishers can strategize around? This paper will explore these questions and look at some of the possible reasons behind Amazon’s business practices and the possible consequences to publishers.  相似文献   

20.
This study explores the attitudes and actions of bank managers toward communication spending during recession. Results of this study indicate that organizational leaders cut communication spending early during recession and also erroneously rely on the bank's financials to mitigate irrational customer withdrawals. This research is used to illustrate the need for public librarians to meet the needs of bank stakeholders when their institution ceases to communicate during crises, for academic librarians to educate students in undergraduate and graduate programs regarding heightened information needs during recession, and for corporate librarians to understand a potential avenue for competitive advantage during recession.  相似文献   

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