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1.
基于SKOS 的国防科学技术叙词表向本体的转换研究   总被引:2,自引:0,他引:2  
本文对通过<国防科学技术叙词表>来构建国防科技领域本体进行了研究.文章简要介绍了几种本体描述语言,在详细描述W3C 新推出的本体描述语言标准SKOS 的基础上,结合<国防科学技术叙词表>分析了SKOS 对于概念、属性、映射的描述方法.SKOS 具有简单、系统、全面的特点,使得本体的构建更为方便、高效,为国防领域的知识共享和重用奠定了基础.在本文的实例部分,介绍分析了<国防科学技术叙词表>,尤其是词表中的字顺表所包含的主要语义关系,之后节选了词表的枪械部分段落,在详细分析枪械体系中的概念和其中的关联关系等的基础上完成了本体的转换.  相似文献   

2.
何琳 《图书馆杂志》2011,(12):59-62,112
传统的知识组织资源为本体构建提供了良好的术语基础和丰富的语义关系,本文提出了一种将传统知识组织资源进行集成的方式构建本体,初步提出了通用分类体系的构建策略、叙词表资源整合的方案以及叙词表关系细分的方法,并对构建过程中的几个关键问题进行了讨论。  相似文献   

3.
简单知识组织系统与汉语主题词表   总被引:3,自引:1,他引:2  
简单知识组织系统(SKOS)是W3C组织语义网下的工作组织发布并维护,为知识组织系统的表达提供强有力且简单的机器理解方式。它的建立为叙词表的形式化表达提供了概念、模型,使各叙词表之间、叙词表与本体之间的映射成为可能。如何利用SKOS,使叙词表在词义检索中得到更好地应用,实现用户检索请求的语义本体化,将是叙词表研究者更大的挑战。  相似文献   

4.
中文叙词表本体共建共享系统研究   总被引:6,自引:0,他引:6  
本文阐述了中文叙词表本体(OntoThesaurus,即基于中文叙词表建立的本体知识库)共建共享系统的设计思想和总体结构.描述了中文叙词表转换为OWL本体的扩展TBox定义,叙词表文本的ABox实例自动转换,OntoThesaurus的一致性检测机制;OntoThesaurus在图书情报界及语义Web界的广泛共享应用前景;在共享应用中采集标引员、领域专家和一般检索者知识实现本体共建和动态完善的完整过程.最后对我国叙词表编纂机构快速实现现有中文叙词表(主题词表)的网络化共建和共享服务提出了建议.  相似文献   

5.
概念间关系是本体的重要组成部分,概念间关系的细化可以消除概念的歧义性。基于叙词表构建本体时,需要对叙词表中的语义关系进行细化调整。在研究中文叙词词间关系的基础上,对叙词词间关系细化提出了一套完整的调整方案,并对此细化方案进行了具体的描述和举例说明。  相似文献   

6.
将传统的知识组织体系转换为本体,可以加快本体建设的进程,并在语义Web中提供更好的信息服务。文章以叙词表资源为转换对象,总结现有叙词表向本体转换的方法与工具研究,提出了叙词表向本体重构的通用技术框架,并重点探讨涉及的关键技术。  相似文献   

7.
陶俊 《图书情报工作》2018,62(21):140-148
[目的/意义]词表语义组织是馆藏语义化研究的重要组成部分,梳理该领域的历史演进有利于明晰重点并推动其更好发展。[方法/过程]在辨析词表语义组织领域核心术语的基础上,提出"标准规范——语义组织方法——支撑技术——词表应用"研究框架,基于该框架梳理中文叙词表语义研究代表文献。[结果/结论]提出词表语义组织的定义及其主体框架,揭示了词表、本体、关联数据等的核心概念及其有机联系;以叙词表为例梳理我国词表语义组织研究近10年来的代表性研究工作;比较词表传统研究与语义组织研究的内在异同,并对我国词表语义组织研究进行述评和展望。  相似文献   

8.
《汉语主题词表》转换为本体的思考   总被引:6,自引:1,他引:6       下载免费PDF全文
叙词表具有清晰的语义结构,便于从中抽取概念和关系,目前已有十多种叙词表被用各种方法转换为本体。叙词表转换为本体的难度依赖于叙词表本身的特点。我国《汉语主题词表》有自身的一些特点和不足,转换过程中应对叙词及其存在关系明确界定,把握四个方面的基本原则。以特定应用或特定领域为核心,《汉语主题词表》在转换为本体的过程中,需要调整叙词表中概念之间的关系:一是核心概念的选择;二是概念之间关系的改造。  相似文献   

9.
以医学领域的预防医学为例,研究语义网格环境下数字图书馆领域本体的构建与应用;以医用叙词表MeSH为例,探讨以医用叙词表为基础构建医学领域本体的必要性,阐述预防医学本体构建的流程,包括本体构建工具、本体构建方法,尝试进行医用叙词表到领域本体的转换研究,并利用Racer推理机对此领域本体进行初步的推理应用研究。  相似文献   

10.
多语种叙词本体研究   总被引:1,自引:1,他引:0  
随着网络技术的不断发展,作为信息与知识组织的重要工具叙词表应时代的发展也需要不断的改进.本文将本体模型及技术与叙词表的概念组织方案相结合,提出多语种叙词表的构建新方案--多语种叙词本体,并以此向新一代叙词表推进.通过分析目前关于叙词表构建、本体构建、本体映射以及本体学习和演化等研究现状,研究了叙词本体的结构与组成,分析了多语种叙词本体实现,包括多语种叙词本体的构建以及多语种叙词本体的自学习和自动演化等.  相似文献   

11.
This article surveys a sample of sources of the information about Romania available to British readers in nineteenth century British newspapers and periodicals. It traces first contacts between the Romanian lands and Britain after the union of the principalities of Wallachia and Moldavia in 1859, then after their independence from the Ottoman Empire. The article highlights an increased Romanian interest in British periodicals, which reported and reviewed Romanian literature and scholarship. The article concludes that nineteenth century British newspapers and periodicals offer a great variety and wealth of new material previously unavailable or unknown to researchers. It also states that only a portion of a large quantity of this material has been indexed and is therefore available via the bibliographic sources mentioned in the article. The author argues for the need of a new and updated British-Romanian bibliography, which can draw on new online resources offering access to thousands of new newspapers and periodical records.  相似文献   

12.
ABSTRACT

The paper looks at library approval plans for material published in Slavic, East European, and Eurasian countries from the selector's point of view. Reasons why a selector would or would not want one are examined. Success with approval plans requires monitoring receipts, as well as good and ongoing communication among the selector, the acquistions department, and the vendor. A preliminary list of vendors offering approval plans for the countries of the region appears in the appendix.  相似文献   

13.
为进一步提升武汉科技信息共享服务平台使用效率,本文从平台资源建设、资源应用、供需对接方式和供需特点等方面分析了武汉科技信息资源服务现状;基于需求和利用的角度,结合平台管理实践和走访用户、问卷调查等研究方法,从信息资源需求主体和平台自身建设管理两个维度,找出制约科技资源供需对接的主要因素;以市场化和制度化为创新理念,从政策创新、机制创新、市场化服务、环境营造、人才培养等方面提出平台建设由“资源集聚”向“需求导向”转变的对策建议.  相似文献   

14.
ABSTRACT

The article examines the most important periodicals of ethnic minorities in Poland. After 1989, many ethnic groups (e.g., Germans and Romanies) were allowed to publish journals and newspapers for the first time since the end of World War II. The publications examined show the rich cultural life of the various ethnic groups as well as their current status in Poland. In addition to popular titles, some scholarly publications are also discussed.  相似文献   

15.
在分析文献在不同研究阶段用词时间特征的倾向性基础上,提出一种基于主题模型的研究发展阶段识别方法。重点阐述该方法的构建过程,包括时间特征抽取、发展阶段界定、主题冷热变化分析等步骤。为验证该方法的有效性,针对词频统计法和主题模型方法在主题演化分析中的效果进行比较分析。结果表明,该方法能在识别主题热点和发展趋势的同时,有效地区分不同主题所反映的研究发展阶段。  相似文献   

16.
The author answers a reference question on bibliographic sources for the Ukrainian periodical press 1840–1850. Helpful publications include bibliographies, guides, and library catalogs. These potentially make mention of revolutionary developments in Hungary (such as the Twelve Points paragraph of the Demands of the Hungarian Nation in March 1848, the subsequent April Laws, and Hungary's declaration of independence in April 1949), and elsewhere in the Hapsburg Empire.  相似文献   

17.
ABSTRACT

In today's current political environment raising support for millage renewals, bond campaigns or even millage continuations for public libraries is affected by national politics, and a tendency towards tax aversion on principle across the country. The lessons we can learn from the governing boards of small and rural public libraries are worth raising up to a greater national consciousness. Board governance, community consciousness, and facilities management are clear and logical tools that elected boards of public libraries can use to politick for support of libraries.  相似文献   

18.
Chromebooks and the G Suite group of products, like Google Search, Gmail, and Google Docs, have rapidly expanded in American schools during the past 5 years. The impact of one-to-one Chromebook devices and the pervasive use of Google's software products in American education cannot be overstated. This article explores some of the influences of these products on research, based on the experiences of a librarian and technology coordinator at an elementary education level. The author has several suggestions for effective research with these products in mind.  相似文献   

19.
Library historians can learn a great deal from studying the gender of authorship and institutional affiliation of a scholarly journal. The focus of this study is to examine these two aspects of journal production in library history to see who is producing published research in this field. Twenty-three years of Libraries & Culture were chosen as the target volumes. The study reveals that more men than women published in library history as well as locating which institutions were represented. This type of information is usedful to the library historian engaged in the analysis of published scholarship, and more generally to scholars with an interest in patterns of literature production in fields closely related to the social and behavioral sciences.  相似文献   

20.
ABSTRACT

The history of the almanac in Croatia is reconstructed through primary research in bibliographic and archival sources. The almanac is a vehicle for knowledge communication in informal contexts, engaging both oral tradition and literary forms traceable to medieval literacy and ways of structuring knowledge. The history of the almanac in Croatia reflects the changing context of the book trade, literacy, and the evolution of language. Four main stages are identified: (1) the beginning of the annual almanac in the seventeenth century; astrological almanacs reflecting the sensibility of the Baroque period; (2) the Enlightenment's stimulation of almanac publishing in the spirit of contemporary secular reforms in agriculture and education; (3) nineteenth-and twentieth-century almanac trade, showing complex and overlapping networks for the production, distribution and appropriation of printed almanacs;(4) roughly the end of World War II, when the almanac slowly moved out of the role of a popular mass medium and into specialized niches represented by regional, diaspora, and religious almanacs.  相似文献   

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