共查询到20条相似文献，搜索用时 515 毫秒
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[目的/意义] 探究不同学科分类方案对于学科标准化方法效果的影响,并比较不同学科标准化方法的效果。[方法/过程] 在Web of Science学科分类方案下就比均值法、比中位数法、Z-score法这三种常用的标准化方法的效果进行比较研究;变更不同粒度的学科分类方案,对这三种标准化方法在Essential Science Indicators （ESI）、经济合作与发展组织（OECD）学科分类方案下的敏感性进行实证检验。[结果/结论] 结果显示,使用不同学科分类方案并未对各标准化方法的效果产生较大影响,各标准化方法的效果基本保持不变。从CCDF引文分布曲线的图形上来看,使用三种标准化方法处理后的CCDF曲线形状较原始引文的CCDF曲线形状明显更加聚拢,并且三种标准化方法在更换不同粒度的学科分类方案后引文分布情况仍大致相同。结合top z%法从定量数值的角度再次进行检验,可以发现,三种标准化方法的效果在变更不同粒度的学科分类方案后基本保持不变,并呈现出如下规律：在截取全局top30%以下论文时,比均值法、Z-score法的标准化效果虽然略有不同,但是都优于比中位数法;截取top30%-40%阶段论文时,Z-score法的优势较为突出;截取top40%以上论文时,比中位数法则呈现出明显优于其他两者的效果。 相似文献
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《Journal Of Access Services》2013,10(1):1-4
ABSTRACT The authors discuss their experience in organizing a library for a community of Benedictine monks in central Italy. An initial assessment of the monastery's resources suggested that both global and immediate access to bibliographic records was feasible and that the librarians could begin cataloging offsite. Decisions about classification schemes and software were made with sensitivity to the international makeup of the community, historical and national library practices, financial limitations, and perceived computer literacy within the community. Unanticipated problems emerged with respect to classification, human resources, time lags and distances, yet overall access to the collection has been enhanced by addressing these problems. 相似文献
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Maura Valentino 《Journal of Web Librarianship》2017,11(3-4):231-240
ABSTRACTThe 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
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《Cataloging & classification quarterly》2013,51(2):75-98
ABSTRACT This proposed new classification scheme is based on two main elements: hierarchism and binary theory. Hence, it is called Universal Binary Classification (UBC). Some advantages of this classification are highlighted including subject heading development, construction of a thesaurus, and all terms with meaningful features arranged in tabular form that can help researchers, through a semantic process, to find what they need. This classification scheme is fully consistent with the classification of knowledge. The classification of knowledge is also based on hierarchism and binary principle. Finally, a survey on randomly selected books in McLennan Library of McGill University is presented to compare the codes of this new classification with the currently employed Library of Congress Classification (LCC) numbers in the discipline of Library and Information Sciences. 相似文献
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ABSTRACTThe library at Aanischaaukamikw Cree Cultural Institute has a collection of more than 4,000 books, periodicals, and audiovisual materials focused on the culture, history, and language of the Cree Nation. Both Dewey Decimal Classification and Library of Congress Classification use non-Indigenous perspectives that result in unwieldy call numbers for our items, while nevertheless losing the specificity of subjects in our collection. We therefore chose to implement the Brian Deer Classification (BDC) scheme. BDC is a nontraditional system developed specifically for Indigenous libraries in which the collections inform the classification plan. Catalogers with specialized knowledge of the community represented in the collection is essential to success. 相似文献
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《Legal Reference Services Quarterly》2013,32(1):53-65
Abstract This knowledge path is divided into five sections covering basic patent questions, the U.S. patents database, patent law (statutes, regulations, treaties and court cases), statistics and general information patent Web sites. The U.S. patent database file, the text of patent laws and regulations, and statistics are available from the USPTO Web site. Since USPTO does not compile a complete list of court cases pertaining to patents, better resources for this kind of information exist outside of the Patent Office. Web sites included in the general information section either bring together and organize a large number of patent information resources or provide easy to understand explanations of patent law. 相似文献
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Transaction log analysis (TLA), content analysis, and grounded theory procedures were used to explore the use of an institutional digital repository and social networking website by the academic community of a graduate school of education in the northeastern United States. Three successive years of usage records were gathered and analyzed to determine: (a) the numbers and categories of persons signing up to use the repository during each school semester, (b) the type of content being archived and its rate of growth, and (c) the possible influence of the repository on collaborative, online and open access scholarship within the institution. Findings show a steady increase in the usage of the repository for archiving and sharing digital resources, and an item-tagging scheme that suggests user preference of the resource as a platform for enhancing professional rather than personal interests. User interactivity by way of textual scholarly discussions on the repository platform is however almost nonexistent. 相似文献
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电子文件分类方案是指导电子文件分类的重要工具。本文通过对国际上典型的文件分类方案、指南、标准等进行深入分析,并结合相关实践经验,明确了电子文件分类的定位,提出了建立基于业务活动分析的电子文件分类方案应当遵循的原则,并对其建立方法进行了详细说明,以期对我国电子文件分类工作有所指导。 相似文献
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Frank Lambert 《Cataloging & classification quarterly》2013,51(3):208-222
Libraries and information centres use often multiple classification schemes for organizing their collections. In Canadian full depository libraries government publications can be organized in collections using a government publishing office's own notation, knowledge organization notation, or other notational scheme designed especially for government publications. Provenance-based schemes such as CODOC are attractive for their universality and for work-related purposes that may be influenced by financial challenges. However, libraries that use multiple notations for government publications may open the potential for intellectual disruption to information retrieval practices in either physical or virtual browsing. 相似文献
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[目的/意义] 针对SAO结构短文本分类时面临的语义特征短缺和领域知识不足问题,提出一种融合语义联想和BERT的SAO分类方法,以期提高短文本分类效果。[方法/过程] 以图情领域SAO短文本为数据源,首先设计了一种包含"扩展-重构-降噪"三环节的语义联想方案,即通过语义扩展和SAO重构延展SAO语义信息,通过语义降噪解决扩展后的噪声干扰问题;然后利用BERT模型对语义联想后的SAO短文本进行训练;最后在分类部分实现自动分类。[结果/结论] 在分别对比了不同联想值、学习率和分类器后,实验结果表明当联想值为10、学习率为4e-5时SAO短文本分类效果达到最优,平均F1值为0.852 2,与SVM、LSTM和单纯的BERT相比,F1值分别提高了0.103 1、0.153 8和0.140 5。 相似文献
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Elías Tzoc 《College & Undergraduate Libraries》2016,23(2):184-192
For primarily undergraduate institutions, institutional repositories can become effective tools for communicating and showcasing faculty and student research, facilitating open access initiatives, or supporting new scholarly communication practices. Choosing the right software platform is crucial to the success of a repository initiative. The literature suggests that there are only two or three software platforms heavily used in undergraduate libraries. This article aims to give a landscape of the repository platforms used in sixty-seven undergraduate libraries in the United States in late 2013; it also includes the results of a short survey about current institutional repository software platforms and users/administrators’ satisfaction. 相似文献
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Xiaoyan Song 《期刊图书馆员》2017,72(1-4):160-165
ABSTRACTThis conference report describes the challenges arising from the growth of the e-book market and explores how a mix of proprietary and open source systems can be used to manage e-book collections. The author uses an analogy of building with Legos to evoke an interlocking approach to e-book management. The discussion addresses functionality and pain points of mainstream, commercial systems and explores the ways that open source tools can be used alongside traditional software to create a more full-featured environment. 相似文献
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本文旨在为国内外分类法拥有者快速实现现有分类法的Web版、Web Service术语服务、Linked Data化和自动分类等网络共享服务提供参考和支持。以《中国图书馆分类法》第四版为例,采用CNKOS对分类法进行语义化描述,使用Lucene全文检索引擎、Ext Js插件、Axis SOAP引擎和URL Rewrite等关键技术实现了分类法共享服务(CLSS)原型系统。经验证明所有功能模块运行和调用都符合预期效果。实践证明该套解决方案可投入使用,而且其他分类法类型的中文知识组织系统均可依此方法快速完成相应的部署。但是,对于部分复杂的自动分类需求,如要获得更为准确的分类号还需更深入的研究或人工辅助。图5。表4。参考文献21。 相似文献
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Filiberto Felipe Martínez-Arellano Federico Hernández-Pacheco Efrén Chávez-Hernández 《Cataloging & classification quarterly》2013,51(2-3):91-105
AbstractSubject indexing and classification of law resources is a complex issue due to several factors: specialized meanings of legal terms, meanings across different branches of law, terms in legal systems from diverse countries, and terms in different languages. These issues led to the development of a classification and subject indexing system which will help answer the major challenges of indexing and classifying law resources in the Research Institute Library at the National Autonomous University of Mexico. Adopting its own classification required interdisciplinary work between law and information organization specialists, constant updating by legal specialists and others beyond the Legal Research Institute; and the sharing of this classification system with other institutions. Now, this classification system is used by important institutions that specialize in law, such as the network of Libraries of the Supreme Court of Justice of the Nation of Mexico. The purpose of this article is to show why and how this law classification and subject system was developed and is continuously being updated by libarians and law scholars in order for it to meet their specific needs. 相似文献
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Apache、Linux、Ubuntu、Debian、OpenOffice、Mozilla、开源中国社区(OsChina.NET)、开源及基础软件通用技术创新战略联盟(Cosoft)、开源高校推进联盟(LUPA)是国内外成功的开源社区;Oss4Lib、Code4Lib、Koha、Evergreen、reSearcher是国外图书馆开源社区,随着开源软件的发展,国内图书馆已越来越多地使用开源软件,但还没有开源社区。上述开源社区的成功经验必能对图书馆开源社区的发展起到很好的借鉴作用。文章从开发模式、管理模式、人才培养模式、基金模式、盈利模式等方面探讨图书馆开源社区的持续发展模式。 相似文献
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Kirsty Bower Nick Sheppard Jennifer Bayjoo Adele Pease 《New Review of Academic Librarianship》2017,23(2-3):233-244
ABSTRACTThis practical article presents findings of a small scale study undertaken at a large U.K. University. The purpose of the study was to encourage academic engagement with Open Access (OA) and the Higher Education Funding Council for England (HEFCE) mandate with the measurable impact being increased engagement with the Repository and dissemination of research while circulating information to the wider community. In order to promote research, a series of “Focus on” webpages were created aligned to a particular theme and were then disseminated via social media. It was anticipated that by potentially increasing access to research outputs, academic staff would be motivated to make their work available following OA models and use the institutional repository (IR) as a means to achieve this. The main drivers for the study were the Finch Report, the HEFCE Policy for open access in the post-2014 Research Excellence Framework and the institutional strategy for research. Data was collected through a statistical analysis of both the “Focus on” pages and journal article downloads via the IR, with results indicating increased engagement with the IR making research openly accessible. 相似文献
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[目的/意义]机构知识库集成服务系统是机构知识库发展的必然趋势,可以实现更大范围的知识产出保存和共享,对于构建科研信息基础设施、促进学术交流和知识创新有着重要意义。 [方法/过程]对国内外已有的机构知识库集成服务系统进行调研,对系统的主要功能、关键技术及开发方式进行比较分析,并基于开源软件eXtensible Catalog快速构建一个中文开放知识库集成服务系统。[结果/结论] 建立起一个覆盖中国科学院、国内高校、港澳台高校开放机构知识库的集成服务系统,可对促进我国学术资源开放获取与机构知识库的建设发展起到一定的推动作用。 相似文献
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[目的/意义]为ISO术语国际标准实现语义Web化服务提供可行的方案和系统验证。[方法/过程]针对ISO 5127（Information and Documentation-Foundation and Vocabulary）的整体信息和第3部分的术语款目结构特征,提出了相应的SKOS语义描述方案。利用计算机程序自动判断其Word格式或HTML格式文本中每一个术语的唯一代码、首选标签、替代标签、定义、来源、示例等,将所有术语款目转换为相应的SKOS文件,并采用分类法共享服务系统CLSS的解决方案,实现了ISO 5127的共享服务系统ISO 5127_CLSS,包含Web版、Linked Data服务和Web Service服务功能。[结果/结论]采用Dublin Core和SKOS对ISO 5127术语国际标准进行语义描述,并采用CNKOS的支持系统CLSS解决方案快速实现其广泛共享服务是切实可行的。其他分类法类型的知识组织系统（如分类法、范畴表、规范代码表等）均可依此方法快速完成语义描述方案的设计和共享系统的实现。 相似文献