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1.
面向关联数据的语义数字图书馆资源描述与组织框架设计与实现 总被引：3，自引：2，他引：1
本文提出了一个面向关联数据的语义数字图书馆资源描述与组织框架,该框架具有四个层次:元数据层、本体层、关联数据层和应用层,其核心是RDF语义元数据的构建与关联。以"图书、情报与档案学"领域的数据为例对该框架进行了实现,实现的重点是在本体层和关联数据层,包括相关本体的设计、普通元数据到语义元数据的自动转换、不同数据集间RDF语义链接的建立、关联数据的发布等。 相似文献
2.
关联数据及DBpedia实例分析* 总被引：8，自引：0，他引：8
白海燕 《现代图书情报技术》2010,26(3):33-39
基于关联数据的基本原则和发布方法,分析介绍DBpedia的实现技术：通过对WikiText格式数据进行语法解析和流程控制,实现对自由文本进行的结构化数据抽取和RDF表达,并基于URI参引、SPARQL查询和RDF文件转存等多种方法,实现多样化的Web数据获取;采用基于属性和基于模式的自动关联算法,与众多数据集之间实现关联。 相似文献
3.
语义链接构建原则包括链接来源确定、链接对象评价与链接属性选择,而链接类型则分为概念间的词汇型链接与实体间的关系型链接。基于此,图书馆可利用SPARQL查询从目标数据集中选择满足链接要求的术语变量,或通过基于本体映射的相似度计算在概念间构建词汇型链接。另一方面,关系型链接构建可利用SPARQL查询寻找与馆藏存在语义相似性的实体并判断其语义关系,或利用字符串相似度匹配对资源文本特征属性进行精确匹配,从而实现图书馆与外部关联数据集的链接构建与资源共享。 相似文献
4.
面向馆藏数据库的关联数据发布研究 总被引：2，自引：0，他引：2
D2R Server关联数据发布工具能够基于关系型数据库与关联数据在概念与数据层面的映射机制,利用D2R服务器、D2RQ引擎与D2RQ映射文件,构建数据库关系模型与关联数据RDF模型之间的语义映射规则。基于此,图书馆可以分别针对文献管理与馆藏书目数据库,利用D2RQ映射文件编制、主外键转换、关联映射定义、书目本体构建将馆藏元数据转换为RDF文档并实现多重客户端访问查询,从而为图书馆关联数据应用提供一种现实选择。 相似文献
5.
关联数据是语义网的一个简单应用,用来在语义网中使用RDF和URI发布、分享、连接各类数据、信息和知识。图书馆界应用关联数据发布资源的过程中,最为关键的一步是如何将MARC格式转换成RDF格式。针对CNMARC的特点,借鉴国外图书馆MARC21转换成RDF的成功做法,构建CNMARC到RDF的映射实现,并探讨在转换过程中遇到的一些问题。图1。表8。参考文献17。 相似文献
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提出基于关联数据技术组织用户需求的设想及其架构——需求语义网络模型,该模型由数据层、需求信息层、应用层组成,需求信息层是整个模型的核心,其构建包括需求信息建模、需求信息命名、需求信息RDF化、需求信息发布、开放查询5个步骤,需求语义网络构建的重点和难点包括用户需求及关系的定义与描述、用户需求的关联与分解、需求网络中各层次之间的协作与交流以及匹配服务器的延伸和扩展等,最后,将需求语义网络理论应用到高校图书馆个性化知识服务中,提出基于关联数据的高校图书馆图书需求语义网络的构建模型。 相似文献
8.
[目的/意义] 分析和评估国家图书馆发布的关联数据集,以了解典型国家级资源的数据质量状况,为其他图书馆的数据发布和应用集成提供借鉴。[方法/过程] 在现有质量评估指标体系的基础上构建针对关联书目数据的质量评估框架和指标,通过人工调研和自动统计、分析方法对关联数据集的RDF词汇、URI有效性等7个指标进行统计和分析。[结果/结论] 5个国家图书馆发布的图书关联数据集在RDF词汇、著录项描述、信息关联等3方面显示出较为明显的一致性,在语法检测及URI的有效性检测等方面显示出国家图书馆数据的高质量。 相似文献
9.
关联数据在网络信息管理中的应用 总被引：1，自引：0，他引：1
互联网的发展产生了大量的各种类型的信息,但由于传统网络数据的发布格式缺乏结构和语义,造成了网络上大多数文档和数据的孤立。关联数据作为一种新的网络数据发布方式,通过RDF（资源描述框架）构建数据模型,通过URI（统一资源标识符）命名数据实体,发布有关联的互联网信息,使用HTTP协议获取这些相互关联的信息,实现互联网信息的语义整合,实现关联数据浏览器和搜索引擎的应用,使计算机能够更加智能化地帮助人们组织和管理信息。 相似文献
10.
互联网的发展产生了大量的各种类型的信息,但由于传统网络数据的发布格式缺乏结构和语义,造成了网络上大多数文档和数据的孤立。关联数据作为一种新的网络数据发布方式,通过RDF(资源描述框架)构建数据模型,通过URI(统一资源标识符)命名数据实体,发布有关联的互联网信息,使用HTTP协议获取这些相互关联的信息,实现互联网信息的语义整合,实现关联数据浏览器和搜索引擎的应用,使计算机能够更加智能化地帮助人们组织和管理信息。 相似文献
11.
《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
12.
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
13.
《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
14.
Neil De Young 《Publishing Research Quarterly》2009,25(3):139-146
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
15.
Barbara Lison 《图书馆管理杂志》2013,53(2):180-187
ABSTRACTGerman authorities are expecting more than 1 million refugees by the end of 2015. These people come to Germany to seek protection and assistance and to build a new life, therefore it is important to welcome them and to assist them in their integration as soon as possible. This situation creates a versatile and perfectly fitting opportunity for cultural and educational programs, including libraries, which can play a vital role in this integration process. The key to integration is the knowledge of the German language, and the most important challenge now is to teach the necessary language skills to as many asylum-seekers as possible. 相似文献
16.
《Journal of Web Librarianship》2013,7(1):41-59
Abstract Many libraries use RSS to syndicate information about their collections to users. A survey of 65 academic libraries revealed their most common use for RSS is to disseminate information about library holdings, such as lists of new acquisitions. Even though typical RSS feeds are ill suited to the task of carrying rich bibliographic metadata, great potential exists for developing applications that can exploit metadata exposed to Web services via RSS. Using the MODS metadata format, entire catalog records can be seamlessly embedded in RSS 2.0 feeds. Existing tools, such as Library of Congress Java toolkits and XSLT stylesheets, can facilitate this process, while a new XSLT stylesheet may be used to create the RSS feeds complete with MODS records. As an example of the added functionality these MODS/RSS feeds can offer, records from a MODS-enriched RSS feed can be ingested into a non-RSS application such as Zotero. As more emerging library technologies use Web services architectures to handle data objects, the ability to syndicate catalog records will become more critical to providing innovative library Web services. 相似文献
17.
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
18.
Jason D. Phillips 《期刊图书馆员》2013,64(1):82-101
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
19.
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
20.
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