共查询到18条相似文献，搜索用时 64 毫秒
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元数据互操作方案研究 总被引：1，自引：0，他引：1
张敏 《高校图书情报论坛》2006,5(1):31-33
本文从分析元数据标准和元数据互操作开始,阐述了目前元数据互操作多种解决方案元数据映射;基于DC扩展的元数据格式;元数据开放描述;元数据开放搜寻等。 相似文献
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元数据互操作的逻辑框架 总被引：1，自引：1，他引：1
元数据的互操作是分布式信息环境下信息发现的核心技术.文章在元数据的结构模型基础上,讨论了元数据互操作的层次、原型和语义语法的一致性.文章认为,语义的一致性和语法的统一性是元数据互操作发展的趋势,由于元数据抽象模型将元数据的语义语法描述置于同一个框架下,基于抽象模型的元数据互操作可能是一个值得探索的领域. 相似文献
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电子文件管理元数据模型研究 总被引：2，自引：0，他引：2
本文重点介绍了电子文件管理元数据模型的概念,提出电子文件管理元数据模型的定义,指出电子文件管理元数据模型是对电子文件管理元数据本质特征进行高度抽象后形成的概念（数据）模型。并指出电子文件管理元数据模型的特点、功能及电子文件管理元数据模型的中国化研究。 相似文献
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国内外元数据标准宏观比较研究 总被引：1，自引：0，他引：1
从宏观上对国内外元数据标准进行了比较研究。简述了元数据的定义,述评了国际上广泛认同的都柏林核心元数据标准,并介绍了国际上其他几种常用的元数据标准。概述了中文元数据标准目前制定的情况,并对中文元数据标准的制定提出了建议。 相似文献
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[目的/意义]探讨资源发现系统元数据方面的问题与解决方案.[方法/过程]从元数据的视角,以当前国内应用最广的4家资源发现系统为研究对象,通过文献资料的收集和内容分析,并结合武汉大学图书馆资源发现系统的调研、测试与实施及电子资源元数据整合与管理的实践,分析当前发现系统的元数据在元数据仓储、元数据质量、元数据测评、服务与合作4个方面存在的问题.[结果/结论]指出资源发现系统的元数据问题不容忽视,并针对元数据描述、元数据仓储、元数据质量管理、元数据测评以及服务与合作5个方面提出解决问题的思考与建议. 相似文献
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This article explores the development and automation of quality assurance procedures for locally loading electronic books (ebooks) on the Ontario Council of University Libraries’ Scholars Portal Platform. The authors conducted a two-phase study of MARC record fields indexed on the platform to detect errors and implement workflow changes to the quality control process. The authors report on this process and the costs involved and suggest that the challenges of ebook metadata are not met by MARC and a new metadata standard should be considered in the near future. 相似文献
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When a scholarly monograph is made available in both print and electronic formats, which format will users prefer? This study analyzed monograph usage data from three university presses in the University of Toronto Libraries' collections, comparing print and ebook usage patterns of identical titles. The goal was to examine format preferences and determine whether there are differences in usage across subject disciplines or publishers. The study showed that although in many cases users preferred one format over another, they used books in both formats. If a subject was popular, usage tended to be high for both formats, and if unpopular, low for both formats. The data also indicated that there were some noticeable differences in ebook usage for particular subjects, and the authors concluded that format does matter and therefore it is desirable for libraries to provide both formats if possible. The study also highlighted how critical metadata are in promoting the use of electronic resources. If there were no ebook metadata within the library catalog, the ebook usage was low. This analysis adds to a growing body of literature in user preferences on book formats that can assist libraries in making better-informed decisions in collection building. 相似文献
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Metadata Quality Control in Digital Repositories and Collections: Criteria,Semantics, and Mechanisms
This article evaluates practices on metadata quality control in digital repositories and collections using an online survey of cataloging and metadata professionals in the United States. The study examines (1) the perceived importance of metadata quality, (2) metadata quality evaluation criteria and issues, and (3) mechanisms for building quality assurance into the metadata creation process. The survey finds wide recognition of the essential role of metadata quality assurance. Accuracy and consistency are prioritized as the main criteria for metadata quality evaluation. Metadata semantics greatly affects consistent and accurate metadata application. Strong awareness of metadata quality correlates with the widespread adoption of various quality control mechanisms, such as staff training, manual review, metadata guidelines, and metadata generation tools. And yet, metadata guidelines are used less frequently as a quality assurance mechanism in digital collections involving multiple institutions. 相似文献
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文章以网络调查法、文献调研法和内容分析法为主要研究方法,比较并分析DataVerse、Dryad、DSpace、Fedora和CKAN 5个应用广泛的开源科研数据知识库的元数据方案,包含元数据模式、元数据收割协议、资源标识系统以及应用程序接口等内容。提出了我国科研数据知识库元数据的建设方案,即复用通用、标准的元数据模式,根据实际需求扩展与修改;遵循简单、灵活和自动生成的设计原则;将关联数据等语义网技术应用于元数据方案的设计,解决不同元数据模式之间的互操作问题。 相似文献