DC,CNMARC,MARC21元数据研究述评

DC,CNMARC,MARC21是网络信息资源编目的三种主要的元数据格式,从7个方面对三种元数据转换及集成的国内外研究现状进行了评述,分析了该主题研究的特点.指出了存在的问题.     

MARC Reborn: Migrating MARC Fixed Field Metadata into the Variable Fields

Despite calls over the past decade and a half for MARC to be replaced with an encoding standard that is more in keeping with current metadata practices, the current standard has evolved in such a way as to render many of the arguments by those who call for its demise moot. A further revision to the standard is proposed to address the one remaining problem with MARC so as to allow it to better serve the needs of information seekers for years to come.     

论基本元数据核心集与MARC互换的可行性

当前网络信息资源组织方面最突出的问题就是如何使用元数据合作描述网络资源,解决异构数据库相互转换等问题。本文概述了MARC的缺陷和DC的优势,提出CNMARC向DC转换的必要性,详细列出DC元素与MARC各字段映射关系,同时分析了MARC与DC互换的可行性。     

机读目录格式与元数据格式用于网络资源组织的比较研究

论述了机读目录格式与元数据格式在网络资源组织中的应用，探讨了两种格式的区别与联系、优势与不足，提出了在网络资源组织上两者应共存互补。     

基于标签本体的MARC元数据扩展机制研究

M A RC元数据应用范围广泛,但其结构复杂,格式设计和思维设计也存在缺陷,通过标签本体与MARC元数据的映射方法能够有效的解决这些问题。标签本体与MARC元数据映射方法的实质是通过建立两者之间的映射对照表,将MARC元数据用标签的RDF三元组形式进行描述,目的是从用户需求的角度提供信息资源的多种检索途径。     

医学元数据标准制定基本策略和流程

本文针对医学数据的特点,在分析都柏林核心元数据和地理信息元数据的基础上,参考国外四种主要医学元数据,借鉴多种元数据优点,提出了制定我国医学元数据标准的基本策略和流程,以满足医药卫生科学数据管理和共享服务系统中基础医学、临床医学、公共卫生和中医药学等各学科领域数据共享的需求。     

Technological tools for library user education: one library's experience

In today's world, library users are confronted with almost too many options for using information because of the ubiquitousness of technology. Yet, libraries can harness the power of the same technologies to help users find the information they need at the time it is needed. The tools described in this article represent a starting point for librarians looking for technologies that are easy to use, inexpensive, and have a reasonable learning curve. Technologies addressed include classroom technologies such as audience response systems and Web-based technologies, including Web tutorials and screencasting. These technologies enhance and offer flexibility and variety in many educational settings.     

机读目录的检索原理与功能

检索是书目的主要功能之一,著录信息中相当大部分与检索点密切相关。当今,书目形式已由传统的书本式、卡片式向机读式发展,检索过程也由人工查检改进为计算机操作。然而,从一些文献编目规则的制定和编制的机读目录数据来看,存在与计算机特点脱节的情况,影响了机读目...     

元数据应用:语义、结构与句法

本文在简单介绍元数据应用中元数据规范的设计流程之后，从元数据体系架构的语义、结构与句法三个层面讨论元数据具体应用时的相关问题，对如何构筑一个完整的元数据应用进行了较全面的阐述。     

Making Search Engines Notice: An Exploratory Study on Discoverability of DSpace Metadata and PDF Files

ABSTRACT

This study analyzed the search results of four main Internet search engines on three newly created digital collections at Texas Tech University Libraries, in order to assess the search engine indexing on metadata and PDF files of digital items that are published in the institutional repository. The exploratory study found that only one search engine discovered PDF files, while the others only discovered metadata. The results of the study also suggested that metadata and PDF files can supplement each other to facilitate discoverability of the digital collections on search engines, and revealed some findings that are contradictory to conclusions in previous research.     

Making the connection between processing and access: do cataloging decisions affect user access?

One function of a call number is to organize the library collection to promote browsability either on the shelf or in an online catalog. This study, based on research done at the Ohio State University Libraries, examines the impact on library collection organization if call numbers are not changed to fit into the shelf list sequence. The browsability of items were tracked by assessing how many screens away titles appear from like items in the online public access catalog, if call numbers by a bibliographic utility were not changed. The study assesses whether not reviewing the call numbers affects patrons’ ability to find the items.     

元数据:理念与应用

对元数据的定义有多种表述。元数据并不是新的概念 ,但在网络环境下有革新。元数据可分为管理、描述、保存、技术、使用等多种类型 ,在网络信息组织和检索方面具有重要作用。目前 ,元数据在世界范围内的应用越来越广 ;我国在数字图书馆领域里的应用已初见成效。表2。参考文献 30     

Making your collections work for you: collection evaluation myths & realities

Ten myths surrounding evaluation of library collections are debunked and the realities explored, especially those that can subvert the success of strategic planning for the collections. To make collections work pay off for a library and its users, librarians need to gain profound knowledge of their collections and know how they are used. Fundamental to success in these endeavors is evaluating the collections on a regular basis and using the results to build better collections for the future. Establishing what “good” is in objective terms and ways of measuring them is discussed. Using the results to gain friends and influence people toward the library is described. Readers are urged to do all they can to turn this potential into reality.     

iTunes Metadata and Classical Music: Issues and Solutions for Crowdsourced Metadata in iTunes

Crowdsourced metadata available in iTunes is too often insufficient or even incorrect for classical music recordings. Listeners find themselves frustrated when the only options iTunes provides are illogical. What we need is a group of professionals who are experts in music and information organization to clean things up. Enter the Music Library Association. The author proposes that this national group with ten regional chapters divide the work of providing improved metadata for classical recordings, using an open source program such as freedb. Working with Gracenote, individual music librarians could also correct existing data and reduce instances of a user encountering poor information.     

ScienceDirect through SciVerse: a new way to approach Elsevier

SciVerse is the new combined portal from Elsevier that services their ScienceDirect collection, SciTopics, and their Scopus database. Using SciVerse to access ScienceDirect is the specific focus of this review. Along with advanced keyword searching and citation searching options, SciVerse also incorporates a very useful image search feature. The aim seems to be not only to create an interface that provides broad functionality on par with other database search tools that many searchers use regularly but also to create an open platform that could be changed to respond effectively to the needs of customers.     

Darwin and MARC: a voyage of metadata discovery

Awash with discipline driven metadata, information providers are seeking ways to bridge formats. This paper provides an overview of major schemes in vogue related to natural history, and discusses a project that enhanced MARC metadata to provide taxonomic and geospatial fields. These enhancements permit simultaneous searching of museum specimen records and scientific citations. Potential GIS applications are described.