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1.
语义网格环境下基于元数据本体的数字图书馆互操作研究   总被引:1,自引:1,他引:0  
毕强  韩毅 《图书情报工作》2009,53(15):17-82
基于语义网格技术,探索基于元数据本体的数字图书馆系统间的互操作策略,以期用来解决目前数字图书馆系统间互操作所面临的问题,即不同本体之间的互操作,跨语言、跨文化的互操作,数字图书馆的发现与安全性等,并提出下一代数字图书馆系统间互操作框架。  相似文献   

2.
几种典型的数字图书馆互操作协议分析比较   总被引:7,自引:0,他引:7  
互操作是数字图书馆的根本问题,其目标是共享数字图书馆的资源和服务.本文针对数字图书馆应用层的互操作,分析讨论了几种典型的数字图书馆互操作协议,并对其特点进行了比较,最后简单讨论了设计数字图书馆互操作协议时应遵循的基本原则.  相似文献   

3.
基于网格技术的数字图书馆互操作框架   总被引:6,自引:0,他引:6  
网格技术是近年来国际上兴起的一种重要信息技术,它的目标是实现网络虚拟环境上的高性能资源共享和协同工作,消除信息孤岛和资源孤岛。随着数字图书馆的迅速发展,互操作成为亟待解决的重要问题。目前互操作的一些技术方法在实现大规模的数字图书馆互操作方面都存在一定的局限性。笔者提出一种建立在网格技术基础上的数字图书馆互操作框架,为解决大规模数字图书馆的互操作提供了一种新的途径。  相似文献   

4.
互操作协议是各数字图书馆之间通信的基础,也是数字图书馆互操作的重要研究内容。现行三种典型的数字图书馆互操作协议“HTTP、Z39.50、OAI—PMH”各有优势和不足。根据“适度代价获取充分功能”的原则,认为OAI—PMH协议更适合于数字图书馆建设。  相似文献   

5.
互操作是数字图书馆研究的核心问题之一,其根本目的是提供一种分散、异构、海量的信息整合机制,以有效操作大规模分布式数字信息,实现跨库统一检索.文章首先介绍了数字图书馆互操作问题和本体论技术,然后阐述了基于通用本体的元数据互操作机制,最后提出了基于本体论的数字图书馆互操作机制.  相似文献   

6.
现有的数字图书馆互操作实现方法中,基本上都没有考虑网络因素对数字图书馆互操作服务质量的影响,而基于移动Agent技术的互操作方案,在这些方面却有较为突出的表现。论述了什么是Agent、Agent技术在数字图书馆运用的优势及其实施方案。  相似文献   

7.
互操作联邦数字图书馆研究   总被引:9,自引:0,他引:9  
未来的图书馆将是联邦数字图书馆 ,其目标是向用户提供一个将异构、分布信息源无缝集成的视图 ,实现对数字图书馆资源的透明访问。文中首先介绍了研究数字图书馆互操作的必要性 ,在此基础上重点分析讨论了联邦数字图书馆的实现方法 ,并对当前具有代表性的互操作联邦数字图书馆的研究进行了综述讨论 ,最后简单讨论了目前建立互操作联邦数字图书馆所面临的挑战及进一步研究和解决的问题  相似文献   

8.
基于数字图书馆的互操作机制研究   总被引:4,自引:0,他引:4  
介绍了数字图书馆互操作的定义、分类、特征以及互数字图书馆互操作的层次,提出了实现互操作的四种技术途径,并分别加以分析。  相似文献   

9.
OAI协议与数字图书馆互操作性研究   总被引:1,自引:0,他引:1  
OAI协议是近年来在数字图书馆界引起广泛关注的新技术,它具有简单性、开放性与灵活性等特点,可以很好地解决数字图书馆的互操作问题.文章通过对基本的OAI协议与数字图书馆互操作方案存在的一些问题的研究,着重论述了基于网格技术的0AI协议的数据整合方法及其与数字图书馆实现互操作框架的设想.  相似文献   

10.
Web Services与数字图书馆的互操作问题   总被引:2,自引:0,他引:2  
本文介绍了一种可用于解决数字图书馆的互操作问题的新的计算模式Web Services,分析它与以往的数字图书馆互操作解决方案的不同之处,并进一步探讨了近年被数字图书馆领域广为看好的互操作解决方案OAI在Web Services环境下的改进。  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.
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   

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.
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   

16.
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   

17.
Chromebooks and the G Suite group of products, like Google Search, Gmail, and Google Docs, have rapidly expanded in American schools during the past 5 years. The impact of one-to-one Chromebook devices and the pervasive use of Google's software products in American education cannot be overstated. This article explores some of the influences of these products on research, based on the experiences of a librarian and technology coordinator at an elementary education level. The author has several suggestions for effective research with these products in mind.  相似文献   

18.
Library historians can learn a great deal from studying the gender of authorship and institutional affiliation of a scholarly journal. The focus of this study is to examine these two aspects of journal production in library history to see who is producing published research in this field. Twenty-three years of Libraries & Culture were chosen as the target volumes. The study reveals that more men than women published in library history as well as locating which institutions were represented. This type of information is usedful to the library historian engaged in the analysis of published scholarship, and more generally to scholars with an interest in patterns of literature production in fields closely related to the social and behavioral sciences.  相似文献   

19.
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   

20.
《The Reference Librarian》2013,54(74):121-164
Summary

Although the Internet provides access to a wealth of information, there is little, if any, control over the quality of that information. Side-by-side with reliable information, one finds disinformation, misinformation, and hoaxes. The authors of this paper discuss numerous examples of fabricated historical information on the Internet (ranging from denials of the Holocaust to personal vendettas), offer suggestions on how to evaluate websites, and argue that these fabrications can be incorporated into bibliographic instruction classes.  相似文献   

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