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71.
为预防和控制ETL中所存在的管理不善的问题,保证数据仓库高效的ETL实施,设计基于CWM元数据标准的ETL元数据库系统模型,该模型能描述数据变换的具体步骤,并根据此模型设计系统,从而有效地实现ETL过程管理。  相似文献   
72.
科学元数据是加强科学数据管理和共享服务的重要手段之一。数据密集型的科研范式和大数据技术的广泛应用突显了科学数据的重要作用,也对科学元数据的内容、形式和功能等方面提出了新的要求和挑战。本文在对科学元数据的发展现状进行分析的基础上,梳理了科学元数据的相关定义和功能要求,进而从可追溯性、可关联性和互操作性三个方面阐述了大数据背景下的新要求,最后讨论了相关技术及其发展趋势。  相似文献   
73.
Abstract

The Program for Cooperative Cataloging (PCC) Task Group on Metadata Application Profiles was convened in May 2019 to help the PCC understand issues and practices associated with the management of metadata application profiles. Their work, discussed here, will guide future decisions and implementations of metadata application profiles in cataloging.  相似文献   
74.
Abstract

To determine the state of the cataloging job market, this study compares job advertisements from August 2016-August 2018 advertising for jobs with cataloging in the title, metadata in the title, and cataloging and metadata in the title. Given ongoing concerns about the impact of metadata jobs on the cataloging job market, this study asks the questions: Are cataloging jobs in fact “disappearing” and becoming metadata jobs? Are entry-level jobs disappearing, perhaps contributing to the idea that there is a lack of qualified catalogers? Is there a difference in position level between cataloging and metadata job advertisements that can account for a lack or perceived lack of available cataloging jobs? Are there more entry-level or mid/supervisory positions advertised? Are cataloging and metadata jobs really separate, or should they be considered one position called cataloging and metadata?  相似文献   
75.
Abstract

The transformation of library metadata encoded in MARC to linked data will enable libraries to participate in the Semantic Web. This transformation, however, will be an iterative development dependent upon community-based decisions. The PCC, as a community-based organization, is ideally positioned to lead this transformation. As PCC guides this transition, three broad areas must be resolved: the conversion of legacy data to linked data, the use of identifiers to support controlled headings, and the transformation of current workflows to linked-data counterparts. By embracing the Web as a community, PCC can confirm its relevance in a complex web of global data.  相似文献   
76.
[目的/意义]通过梳理纽约公共图书馆口述史资源建设经验,为我国公共图书馆开发口述史资源提供借鉴。[方法/过程]概述纽约公共图书馆及其社区口述史项目,重点介绍纽约公共图书馆社区口述史资源的建设现状和类型,并对纽约公共图书馆口述史资源的建设经验进行整体分析。[结果/结论]众包形式是公共图书馆开发口述史资源的重要方式,应增强口述史资源的信度与效度,以地方特色作为口述史资源建设的亮点,增强口述史资源的开放性与公众兴趣度。  相似文献   
77.
分析了医学数字资源整合的关键问题,针对元数据的深层动态获取、跨机构跨平台的整合、知识内容整合等问题,提出了深度整合和智能化检索的目标,并介绍了目前比较成熟的解决方法和技术路线,以及本馆的相关实践和部分实验。  相似文献   
78.
ABSTRACT

There is a noted lack of primary historical documents related to the Prague Spring, one of the key moments in the Cold War, available online. As such, there is a need for an online resource that presents these primary documents in their entirety, allowing researchers and the public to engage with these materials in a user-friendly, open access format. The Prague Spring Archive, a new project at The University of Texas at Austin, fills this gap. This article addresses the development, promotion, and future steps of the project.  相似文献   
79.
ABSTRACT

The historical clothing collections held by academic and other institutions serve as an important resource for scholars in fields ranging from fashion design to sociology. While metadata schemes have been created for individual clothing collections, no standard metadata scheme for clothing had been developed. This case study describes the creation of a linked data metadata scheme for clothing designed for the Oregon State University's College of Business Design Programs' Historical and Cultural Textile and Apparel Collection housed within the ScholarsArchive digital repository. In addition, the scheme can be used as a standard clothing metadata scheme which may be implemented by other organizations, or extended as needed.  相似文献   
80.
The “Advances in Library Data and Access” column examines technological advances internal and external to libraries. The focus is on how library data is created and used. The strength of the column is its broad, international focus and contributors are encouraged to explore issues and recent advances in information technology relevant to their geographical region, as well as the larger, global audience. Interested authors are invited to submit proposals and articles to the column editor at . Please include “IILR Submission” in the subject line of the e-mail.  相似文献   
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