共查询到20条相似文献，搜索用时 500 毫秒
1.
2.
Mark Ware 《Learned Publishing》2004,17(2):115-124
The institutional repository (IR), an open Web‐based archive of scholarly material produced by the members of a defined institution, has come to the fore following the launch of DSpace at MIT at the end of 2002. Here we review recent developments in IRs and explore the impact their expansion may have on scholarly publishing. 相似文献
3.
首先将我国《标准临床路径》与国际上较完善的临床路径进行比较分析,找出我国《标准临床路径》存在的问题,然后采用openEHR两层法来构建医学临床路径核心元数据体系的语义结构,其中参考信息模型层采用《中国电子病历标准》）的数据结构,原型模型层以《标准临床路径》中的核心元数据为数据来源,结果发现：我国现有《标准临床路径》在语义框架结构上存在分类笼统、内容模糊,缺少清晰明确的逻辑层次的问题;在语义属性结构上存在元数据类型和属性值单一的问题。从语义框架结构和语义属性结构两个方面对临床路径元数据体系进行结构重建,在所设计的临床路径语义框架结构中,将在我国标准临床路径中的三个文档“主要诊疗工作”、“重点医嘱”、“主要护理工作”下增加一级数据组,以便更好地将三个文档的细节项目进行合理归类;在语义属性结构中,设计4种数据元类型,包括“判定数据元”、“赋值数据元”、“条件数据元”和“引用数据元”,从而为建立规范的、模块化的、适于计算机操作的临床路径提供具体思路。 相似文献
4.
语义网研究的基本问题 总被引：2，自引：0，他引：2
概述目前我国语义网的研究现状，在简要介绍语义网概念和模型的基础上，着重分析当前我国语义网的四大研究热点，即语义网描述语言比较研究、元数据研究、本体层开发研究和智能信息检索研究，并阐述语义网的发展对数字图书馆建设带来的若干启示。 相似文献
5.
元数据在网络信息资源组织中的应用研究 总被引：15，自引：2，他引：13
研究如何用元数据对网络信息资源进行标识和组织,重点探讨当前应用元数据进行网络信息资源组织的两个主要问题:不同元数据格式的转换和综合利用XML及RDF构建语义网。 相似文献
6.
构建MARC元数据的Web Service 总被引：1，自引：0，他引：1
徐健 《现代图书情报技术》2004,20(12):18-20
构建MARC的Web Service将成为网络环境下发布MARC元数据非常重要的方式之一。本文对Web Service进行介绍，探讨构建MARC元数据的Web Service的优势，并通过程序实例展示MARC元数据Web Service的具体实现。 相似文献
7.
8.
以基于本体的张謇研究知识库智能检索系统开发为例,探讨基于本体的专题领域知识库智能检索系统的框架结构,工作流程以及功能实现。系统采用语义Web技术和智能Agent技术,使用RDF模型对知识库的Web页面元数据进行描述,然后利用本体建模语言对张謇研究领域知识进行建模,根据所得到的本体对元数据进行基于语义的查询,为用户提供智能检索服务。 相似文献
9.
[目的/意义] 为解决现有网页文本缺乏起源标注的问题,提出一种借助PROV本体发现相似网页文本起源关系的方法。[方法/过程] 通过聚类算法、自动语义标注和关联数据构建等技术的综合应用,结合PROV-POL溯源模型,检测网页文本实体的演变过程,实现文本级和属性级两级溯源方案。[结果/结论] 实验验证了借助语义网技术和数据溯源模型实现网页文本数据溯源的可行性,但实验过程中聚类算法的召回率有待提高。 相似文献
10.
语义网中重量级本体的设计 总被引：1，自引：0，他引：1
通过对本体论中顶层本体、领域本体和任务本体的分析,结合语义网的应用实际,提出语义中重量级本体设计的基本概念、基本要求和基本关系;认为角色概念有丰富的语义描述能力,是重量级本体区别于轻量级本体的重要特征,并试图通过对角色概念的剖析,说明角色概念对语义约束的描述特征。 相似文献
11.
12.
Jill O'Neill 《Learned Publishing》2000,13(2):105-109
The journal impact factor, as a metric developed in the mid‐1960s by Dr Eugene Garfield and Dr Irving Sher, represents the influence that an ‘average article’ published in a specific journal has on the scholarly discipline and audience that it serves. Originally intended to serve as an equalizer for use by the Institute for Scientific Information® (ISI®) in making comparative evaluations of large and small journals in a particular discipline, the impact factor now has numerous applications for publishers, librarians, and researchers. Ideally, the journal impact factor should be seen by publishers as a useful tool in gauging the effectiveness of their publication product in serving the needs of a particular scholarly community. The significance of a journal impact factor, its appropriate usage by the scholarly publishing community and its extension into the electronic environment are discussed. 相似文献
13.
《Government Information Quarterly》2022,39(4):101756
To guarantee a certain level of data usability, metadata which is information about the OGD, is needed. For this reason, OGD administrators provide metadata publishing guidelines to request, among other things, that certain metadata field always be present (completeness) and that field validation rules, when provided, be met (consistency). Lack of compliance of OGD metadata with publishing guidelines in country portals constitutes poor metadata quality control and will drastically decrease the effective use/reuse of the data and keep the expected benefits from being realized. This study explores the extent of metadata compliance, in terms of completeness and consistency, of three OGD leading country portals (Canada, USA, New Zealand) with respect to their own metadata publishing guidelines. A statistical comparison of population proportions among the countries was performed. The results indicate that the compliance of the USA is far less than Canada and New Zealand in terms of datasets with required fields set (completeness). On the other hand, New Zealand trails Canada and the USA in terms of OGD datasets with valid (consistent) fields. These results indicate that OGD metadata compliance is rather poor, suggesting insufficient quality control. Finally, this study concludes with suggestions to improve the OGD platforms so that metadata compliance can be automatically enforced. 相似文献
14.
针对现有元数据索引方法因其固有的缺陷而难以应用于复杂的语义网络,提出一种新的基于语义的元数
据索引查询方法。该方法以ＲＤＦ图为数据模型,在路径索引的基础上,为元数据建立索引,并通过路径表达式实现元数据的查询。它能有效的促进领域知识的共享和语义表达,提高元数据的检索效率和查准率,为用户和应用提供语义查询和信息汇集能力。 相似文献
15.
《Journal of Map & Geography Libraries》2013,9(1):105-135
Abstract Internet access and use of georeferenced public health information for GIS application will be an important and exciting development for the nation's Department of Health and Human Services and other health agencies in this new millennium. Technological progress towards public health geospatial data integration, analysis, and visualization of space-time events using the Web portends eventual robust use of GIS by public health and other sectors of the economy. Increasing Web resources from distributed spatial data portals and global geospatial libraries, and a growing suite of Web integration tools, will provide new opportunities to advance disease surveillance, control and prevention, and insure public access and community empowerment in public health decision making. Emerging supercomputing, data mining, and compression and transmission technologies will play increasingly critical roles in national emergency, catastrophic planning and response, and risk management. Web-enabled public health GIS will be guided by Federal Geographic Data Committee spatial metadata, OpenGIS Web interoperability, and GML/XML geospatial Web content standards. Public health will become a responsive and integral part of rhe National Spatial Data Infrastructure. 相似文献
16.
以古籍描述元数据著录规则为基础，提出一种基于本体语义的古籍知识库建设方案，给出知识库的结构框架，并以语义网为工具对方案作了简要的实现。 相似文献
17.
Mark CARDEN 《Learned Publishing》2015,28(3):184-194
The job titles and career paths of people transitioning between academia and scholarly publishing, and of those who are progressing within their publishing careers, has been little studied and lacks accepted frameworks, ‘route‐maps’, and taxonomies. Much of the work done to date provides merely a ‘snapshot’ of the current demographics of the publishing workforce at particular moment, and tends not to offer insight into pathways, trajectories, or momentum. This preliminary survey, involving around 150 scholarly publishers, reveals insights into job titles, progressions, and transitions, and exposes some of the reasons for transitions between academia and publishing. The analysis suggests that these transitions and career paths can be systematically studied and documented, for use both by individuals considering their own careers, and by planners and managers in academic institutions and scholarly publishing organizations. 相似文献
18.
Philip E. Schreur 《Cataloging & classification quarterly》2020,58(3-4):397-402
AbstractThe 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
19.
《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
20.
标签在数字学术资源内容揭示中的作用研究 总被引：6，自引：0，他引：6
标签是Web2．0时代一种新的资源描述方式。本文探讨了标签在揭示数字学术资源内容方面的能力,通过与关键词的比较以及对标签与被标注对象内容之间关系的挖掘,分析了它是否能够揭示所描述的资源中蕴含的知识／内容,进一步分析了它是否揭示了传统的资源描述方法所无法揭示的内容。研究结果表明:尽管目前标签的形式还比较简单,但它在揭示资源内容方面具有很大的作用。 相似文献