共查询到20条相似文献，搜索用时 171 毫秒
1.
元数据的互操作问题是数字图书馆互操作的一个重要方面。介绍了数字图书馆元数据的作用,分析了元数据方案的3个层面,从语义、句法、结构3个层次探讨了元数据互操作的解决方法。 相似文献
2.
数字图书馆的互操作性研究：Z39.50和OAI协议的比较* 总被引：15，自引：0，他引：15
数字图书馆的互操作性取决于元数据的有效共享，而元数据的有效共享必须依赖元数据交换的统一标准。本文通过比较Z39.50和OAI'MHP两种互操作协议，探讨了元数据的共享和分布式数字图书馆的体系结构。 相似文献
3.
未来数字图书馆的发展方向之一——服务主导型数字图书馆 总被引：2，自引：1，他引：2
本文主要探讨服务主导型数字图书馆的体系结构,服务功能和相关技术及问题等.十几年来,数字图书馆的研究和发展,将形成数字图书馆三种主流模式即特种馆藏型模式、服务主导型模式和商用文献型模式;服务主导型数字图书馆的体系结构它以三种主要数字化资源为基础和由统一信息访问平台、网上参考咨询(VRS)平台为两翼组成;统一信息访问平台主要解决异构平台的信息资源检索,向用户提供方便检索的统一界面,提供不同数字图书馆的互操作.网上参考咨询平台主要解决用户在访问数字图书馆时的疑问.这两个平台对一个实用的数字图书馆是不可缺少的,在系统结构上有些是相互渗透的.文中还探讨数字图书馆建设中相关的十个问题. 相似文献
4.
面向用户的数字图书馆信息服务系统构建 总被引：5，自引：0，他引：5
面向用户的数字图书馆服务系统是一个以网络化数字化知识资源为基础．以用户需求为中心，以先进的信息技术为手段的资源、技术、服务与用户利用一体化的数字资源平台。其体系结构应该是一种三角形的三层客户／服务器模式的“浏览器-web服务器一数据库服务器”结构。该系统的逻辑模型包括了4个层次：服务层、功能层、数字对象层与平台层。而模型实现的关键技术是信息过滤技术、学科信息门户技术及信息智能代理技术．需解决的问题有元数据问题、互操作问题及用户资源管理问题。 相似文献
5.
OAI元数据搜索引擎的设计与实现 总被引：2，自引：0，他引：2
李勇文 《现代图书情报技术》2005,21(2):37-39
数字图书馆的迅猛发展,互操作性问题显得更为迫切。作为低入门级互操作协议的OAI-PMH,能在元数据开放搜寻基础上提供一个互操作框架。本文在对OAI-PMH协议规范、OAI体系结构描述的基础上,阐述了OAI元数据搜索引擎的设计和实现。 相似文献
6.
本体驱动的数字图书馆信息资源语义互操作研究 总被引：3，自引：0，他引：3
鞠彦辉 《图书馆理论与实践》2010,(1)
从本体的建立、本体间的映射以及语义互操作服务三个方面构建了本体驱动的数字图书馆异构信息资源语义互操作框架,将信息资源互操作和共享的问题转化为本体间的映射问题,从而将有效实现分布式数字图书馆之间异构信息资源的语义互操作。构建本体的最终目的是实现推理,利用文献的等级结构和定义的属性可以在转化的MARC上实现推导文献间关系的目标。本体映射是解决不同本体间的知识共享和重用问题的主要技术。完成本体映射后所构建的领域本体服务器是进行信息互操作与集成的核心,是提供语义互操作服务的基础。 相似文献
7.
互操作性是数字图书馆项目建设面临的关键问题.文章以NSTL网络服务系统为例,针对资源类型多样化、服务组件切分不合理引发的互操作问题,提出标准与规范先行、资源建设的开放性、信息服务的整体性、体系结构的适用性和扩展性等四条建设原则,从统一标准规范、统一基础信息和规范组件接口三个方面介绍系统三期建设中互操作机制的设计与实现.最后指出解决数字图书馆领域的互操作问题一定要严格定义互操作的内容、层次,确定实现的范围与边界,这样才能真正具有可行性. 相似文献
8.
文章从元数据互操作的角度出发,提出一个适用于数字图书馆领域的资源概念模型,采用Atom连锁格式描述,希望能够利用Atom的内建特性简化数字图书馆系统之间的数据集成工作,既保证原始数据的完整性,又可以实现完全无损失的元数据互操作。文章从对元数据互操作技术的概述开始,介绍了Atom的基本特性,阐明选择Atom描述资源的理由。在分析Atom在数字图书馆领域的应用基础上,提出基于Atom的数字图书馆资源描述框架,并给出期刊文献的描述样例,同时给出一个基于Atom机制构建的数字图书馆资源网络,指出重构资源网络框架将面临的风险及规避方法。文章结尾指出下一步的主要研究内容。 相似文献
9.
未来数字图书馆的发展方向之一 ——服务主导型数字图书馆 总被引：31，自引：0，他引：31
主要探讨服务主导型数字图书馆的体系结构、服务功能和相关技术及问题等。十几年来，数字图书馆的研究和发展，将形成数字图书馆三种主流模式即特种馆藏型模式、服务主导型模式和商用文献型模式；服务主导型数字图书馆的体系结构：它以三种主要数字化资源为基础和由统一信息访问平台、网上参考咨询（VRS）平台为两翼组成；统一信息访问平台主要解决异构平台的信息资源检索，向用户提供方便检索的统一界面，提供不同数字图书馆的互操作。网上参考咨询平台主要解决用户在访问数字图书馆时的疑问。这两个平台对一个实用的数字图书馆是不可缺少的，在系统结构上有些是相互渗透的。文中还探讨数字图书馆建设中相关的10个问题。 相似文献
10.
因特网已成为全球性的信息环境，我们可以跨越时空获取信息资源。然而，当用户使用自身社区的术语和元数据方案来检索信息时，现在的因特网技术还没有成熟到能提供专业信息设施。元数据担任很重要的角色来帮助实现社区导向的信息环境。本文进行了两项案例研究，包括建立专业主题词表(用于图书馆和图书馆信息科学资源主题网关(LIS)的核心主题词表)和用于地方社区门户网站的主题词表。从这两个案例可以看出小型的主题词表对专业服务是非常有用的，并且维护工作对词表的建立和应用是至关紧要的。为了在网络上建立专业信息环境，我们必须解决对元数据方案来说相悖的两个需求——社区中的专业化(或者本地化)和社区之间的互操作。这篇文章提供了一个概念模型来理解解决这个问题所要涉及的诸多方面。 相似文献
11.
Milan Grba 《Slavic & East European Information Resources》2017,18(3-4):152-164
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.
《Slavic & East European Information Resources》2013,14(4):25-33
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.
《Slavic & East European Information Resources》2013,14(1-2):123-143
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.
Jon C. Giullian 《Slavic & East European Information Resources》2013,14(3):278-284
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.
17.
Josie Barnes Parker 《图书馆管理杂志》2013,53(6):731-737
ABSTRACTIn 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
18.
Kelly Ahlfeld 《International Information and Library Review》2017,49(4):285-289
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
19.
《Behavioral & Social Sciences Librarian》2013,32(1):49-54
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
20.
《Slavic & East European Information Resources》2013,14(1):25-74
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