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1.
国外叙词表的应用与发展趋势探讨   总被引:1,自引:0,他引:1  
叙词表在网络信息组织中的应用提高了文献的查准率与查全率。国外有关叙词表的研究领先于国内,其成果值得借鉴。国外叙词表的特点为学科分布均衡、编制机构多样化、叙词数量多、语种全、以网络载体为主、词间关系复杂。国外的叙词表被应用于本体的构建、知识分类表的构建与网络信息组织的优化等方面。多语言化、互操作化、可视化和分面化为国外叙词表的发展趋势。  相似文献   

2.
概念间关系是本体的重要组成部分,概念间关系的细化可以消除概念的歧义性。基于叙词表构建本体时,需要对叙词表中的语义关系进行细化调整。在研究中文叙词词间关系的基础上,对叙词词间关系细化提出了一套完整的调整方案,并对此细化方案进行了具体的描述和举例说明。  相似文献   

3.
文章在研究叙词本体理论以及演化机制的基础上,构建出一个叙词本体演化的原型系统,并对系统的实 验结果进行了详细的分析。本系统实现了叙词本体演化的过程,能够完成叙词本体的自学习和自动更新  相似文献   

4.
论文分析了叙词表在我国电子政务信息资源组织中的应用,比较了电子政务中的叙词表和本体的区别与联系,并探讨由电子政务叙词表向电子政务本体转换的可能性和具体方法.最后以<综合电子政务主题词表>为基础,运用Protege软件构建电子政务本体样本.  相似文献   

5.
叙词表在网络信息组织中应用的调查分析及其优化   总被引:1,自引:0,他引:1  
司莉 《图书馆论坛》2007,27(6):183-186,105
通过对英文叙词表在网络信息组织中的全面调查与分析,揭示其应用的类型、检索途径及学科范围与语种等特点,从词表的显示与操作、使用帮助、互操作、向多语种发展以及叙词表管理系统等方面提出优化对策。  相似文献   

6.
何琳 《图书馆杂志》2011,(12):59-62,112
传统的知识组织资源为本体构建提供了良好的术语基础和丰富的语义关系,本文提出了一种将传统知识组织资源进行集成的方式构建本体,初步提出了通用分类体系的构建策略、叙词表资源整合的方案以及叙词表关系细分的方法,并对构建过程中的几个关键问题进行了讨论。  相似文献   

7.
汉语科技词系统的Web服务研究与实现*   总被引:2,自引:0,他引:2  
对国内外词汇知识的Web服务研究现状进行调研分析,比较OCLC术语服务、英国高级叙词表、FAO多语种农业叙词表、STAR、中文叙词表本体网络术语学服务等国内外主要研究项目。介绍汉语科技词系统的基本架构、数据模型、功能模块和基于Web服务的汉语科技词系统应用模型、接口封装、部署、以及性能测试情况。最后对下一步研究工作进行展望。  相似文献   

8.
传统叙词表的本体化构建是目前叙词表发展的重要方向。当前叙词表转换为本体的描述语言有XML(S)、RDF(S)、SKOS、OWL等,文章通过对几种典型的描述语言和叙词表之间的语义关系进行映射分析,从描述能力、人工干预、应用性三个层面总结了描述语言在表示叙词表语义关系方面的差异性。该研究不仅有助于传统叙词表在语义环境下进行发展,而且对于本体描述语言的完善具有非常重要的作用。  相似文献   

9.
文章提出了一种构建大规模韩语叙词表的方法,这种叙词表可用于在各种不同领域内提高检索性能.目前它主要用于标引以及检索过程,新的词汇也正源源不断地添加进来.随着韩语中对于检索性能的新需求的不断增加,开发一个大规模的本体系统应当是必要的,因而一个正在进行的项目的目标就是把现有叙词表转变为一个本体系统.文章将描述叙词表是如何构建的,并指出如何将其演变为一个本体系统的基础.  相似文献   

10.
基于Topic Maps的叙词表再工程   总被引:3,自引:0,他引:3  
利用主题图技术构建一个在线叙词表。在分析传统叙词表的词间关系及其不足的基础上,从现有叙词表中选取18个叙词作为研究样本,分析其词间关系并进行建模;最后结合新兴的主题图技术,用Ontopia公司提供的Ontopoly创建出主题图,并用Omnigator和Vizigator分别进行在线浏览和可视化呈现。  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

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   

13.
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   

14.
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   

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.
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   

19.
在分析文献在不同研究阶段用词时间特征的倾向性基础上,提出一种基于主题模型的研究发展阶段识别方法。重点阐述该方法的构建过程,包括时间特征抽取、发展阶段界定、主题冷热变化分析等步骤。为验证该方法的有效性,针对词频统计法和主题模型方法在主题演化分析中的效果进行比较分析。结果表明,该方法能在识别主题热点和发展趋势的同时,有效地区分不同主题所反映的研究发展阶段。  相似文献   

20.
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   

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