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1.
针对数字图书馆中存在的资源整合、系统异构问题,对于如何建设基于语义网格的数字图书馆进行探索性研究。设计基于OWLS框架的数字图书馆语义网格服务模型,确立数字图书馆语义网格服务模型体系结构,设计语义匹配算法及语义服务本体,采用Introduce等工具对网格环境下数字图书馆的语义服务开发进行实验性研究,实现并论证该模型的可行性。  相似文献   

2.
首先对数字图书馆知识服务作以文献综述,然后综合以往研究成果,在语义网环境下,总结语义网本身的技术和概念特点,提出语义网环境下数字图书馆知识服务系统的概念与模型。  相似文献   

3.
本文基于语义网格技术的特点和优势,提出数字图书馆知识服务模型,同时利用本体技术对知识进行语义表示,构建了语义服务发布和语义服务发现模型,设计出寻找服务的最佳匹配算法,实现了数字图书馆的跨平台应用和智能检索。  相似文献   

4.
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   

5.
语义网格环境下数字图书馆知识组织研究   总被引:6,自引:1,他引:5  
针对数字图书馆语义互联和知识分布异构的问题,分析数字图书馆知识组织现状,即语义Web技术与网络技术在数字图书馆知识组织中的应用,探讨语义网格环境下数字图书馆知识组织的研究目标、研究内容和研究思路,提出构建语义网格环境下数字图书馆知识组织系统的关键问题,即解决知识需求与知识获取之间的矛盾,实现知识组织由观念与理论探讨转向实际应用,从而提高数字图书馆知识组织及知识服务的效率。  相似文献   

6.
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   

7.
张继东 《图书情报工作》2013,57(16):130-134
利用云计算技术、语义服务技术来解决数字图书馆的资源重复建设问题和互操作问题,提出云计算环境下的数字图书馆语义服务的框架模型并给出解决方案。自行设计、建立数字图书馆云计算服务平台,并在云平台上进行服务部署。设计云计算环境下的语义服务的描述、部署和组合方式,提出基于硬件检测和语义的云服务调度模式。提出数字图书馆云节点的监控和可视化显示方案,设计数字图书馆云门户。  相似文献   

8.
以基于语义Web的数字图书馆为研究对象,从国外典型的基于语Web数字图书馆原型系统以及语义Web的数字图书馆在底层系统架构、信息描述与信息组织、信息搜索与浏览、信息交流与共享等方面入手,系统梳理国外学者近年来在此方面的研究成果,指出将语义Web引入到数字图书馆领域,进一步提升数字图书馆的服务水平,是国外图书馆界近年来较为关注的问题。  相似文献   

9.
语义网格环境下数字图书馆知识组织的语义互联策略研究   总被引:7,自引:0,他引:7  
数字图书馆知识的无限存在和有限表达之间的根本矛盾需要应用多领域本体方法,介绍现阶段应用多本体的解决方案——本体映射技术,并分析其存在的不足,引入知识地图技术,认为应用知识地图技术可以实现数字图书馆领域本体的聚类,形成数字图书馆本体知识地图,并以此为基础,构建语义网格环境下数字图书馆知识组织的语义互联模型。  相似文献   

10.
语义技术对数字图书馆的发展产生了深远的影响,为数字图书馆实现服务创新提供了基础和平台.在分析数字图书馆服务四个发展阶段的基础上,阐述了语义技术在数字图书馆中资源描述、知识关联、智能检索和可视化呈现方面的应用,然后结合中国科学技术信息研究所在语义工具开发领域和数字资源组织领域的研究与实践进展,提出了数字图书馆服务实现创新的五个方向,即嵌入科研过程提供知识链接服务,基于语义关联优化资源发现服务,借助可视化技术实现知识的动态多维呈现,提供情景敏感的开放式跨界服务和超越时空的数字图书馆移动服务.  相似文献   

11.
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   

12.
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   

13.
Most studies of collection development mask inadequate theoretical underpinnings with facile assumptions and dazzling statistical manipulations. This essay, in moving toward a model for collection development within both specific collections and library systems as a whole, seeks to demonstrate the full range and complexity of relevant factors. An enlarged theoretical grasp should help highlight both the possibilities and the challenges of existing approaches. One result could be a shift toward gaming or simulation techniques as more realistic analytical tools.  相似文献   

14.
An annotated list is presented describing seventeen periodicals that cover significant aspects of the gay, lesbian, bisexual, and transgender (GLBT) community and their culture in whole or in part, with popular content rather than an academic or research focus. The titles included are a selective and representative sampling. The entry for each periodical includes the following information: periodical title, publisher/editor and address, basic information, publication data, content, Internet information, an abstract/annotation, and evaluative statement  相似文献   

15.
SUMMARY

The state of Illinois funded a large scale Ariel project. This is a report of the project's successes and shortcomings. Although widely successful, additional training in the use of sophisticated hardware, primarily Minolta scanners, is needed. Data on sending and receiving is included.  相似文献   

16.
SUMMARY

Ariel files are the starting point for electronic delivery of interlibrary loan articles through ILLiad, Virginia Tech's interlibrary loan system. Despite some advantages to electronic delivery of articles to their desktops, a large majority of ILL customers continue to prefer print on paper delivery rather than electronic delivery. This fact has implications for introducing additional electronic services. Correctly choosing what services to impose on library customers, and what services to offer as value-added options, is fundamental to maintaining the credibility of libraries during these times of rapid change.  相似文献   

17.
SUMMARY

The authors discuss the development of the Slovak periodical press within its historical context and their expectations for its future. The article covers general characteristics of Slovak magazines and newspapers from World War II to 1989, and their later development since the Velvet Revolution up to the present. It also discusses the Slovak press outside of Slovakia from the late nineteenth century.  相似文献   

18.
SUMMARY

There are between fifteen and twenty U.S. libraries that collect publications from Central Asia, defined here as Kazakhstan, Kyrgyzstan, Tajikistan, Turkmenistan and Uzbekistan. Collection development responsibility for these countries tends to rest with the Slavic selector, the Middle East selector, or both, divided by language. Vendors who can supply this material mostly also supply publications from other countries of the former Soviet Union. The author briefly discusses the history of collecting from this region and the results of a survey conducted in 2004. She presents evidence indicating that the main reason U.S. libraries are not receiving more books from the region is most likely because they are not being published, not because vendors are doing an inadequate job.  相似文献   

19.
Library Journal's 2011 Ebook Penetration and Use in U.S. Libraries Survey testifies to e-books’ increasing popularity in academic libraries. This review tracked literature published from 2005 that focused on academic librarians’ best practices for acquiring, cataloging, maintaining, and promoting e-books at their institutions. Some of these practices include implementing trial accesses, considering institutional requirements, providing an e-book presence in the library catalog, monitoring usage statistics, and utilizing the library Web site for promotional efforts.  相似文献   

20.
The author describes the Slavic Humanities Index, a bibliographic database of scholarly and cultural articles on subjects including history; literature; language teaching; linguistics; philosophy; ethnology; performing arts; and cultural, borderland, and regional studies. She discusses its development, its current form and functionality, and plans for the future.  相似文献   

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