共查询到20条相似文献，搜索用时 64 毫秒
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基于本体的知识检索模型及呈现技术研究 总被引：2，自引：1，他引：1
论述知识检索是传统信息检索的发展,基于本体的知识检索模型和知识检索呈现技术,是当前知识检索研究中的几个关键问题。介绍知识检索的研究和发展,对知识检索模型进行研究,提出基于本体的知识检索模型;研究知识检索结果的呈现技术,探讨知识组织体系及本体的语义标注问题,提出基于本体的知识检索呈现方法。 相似文献
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目前的web信息检索中，存在着检索效率低下的问题，很难满足普通用户基于自然语言的检索要求，也不具备语义推理能力，无法实现智能化的检索。而源于知识工程和人工智能领域的本体理论和技术，能够很好地处理自然语言理解问题和具有基于语义的推理机制，因此成为改进传统信息检索方式的良好工具。本文就运用本体理论，在对目前的各种研究进行了调查以后，区别了几个关键的容易混淆的概念，然后提出了一个基于ontology的、web环境下的语义检索系统的结构模型。 相似文献
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目前的web信息检索中，存在着检索效率低下的问题，很难满足普通用户基于自然语言的检索要求，也不具备语义推理能力，无法实现智能化的检索。而源于知识工程和人工智能领域的本体理论和技术，能够很好地处理自然语言理解问题和具有基于语义的推理机制，因此成为改进传统信息检索方式的良好工具。本文就运用本体理论。在对目前的各种研究进行了调查以后，区别了几个关键的容易混淆的概念，然后提出了一个基于ontology的、web环境下的语义检索系统的结构模型。 相似文献
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基于领域本体的语义知识检索研究 总被引：1，自引：0，他引：1
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网络信息语义组织和检索的实现路径 总被引：1，自引：0，他引：1
针对网络信息语义组织和检索的研究现状,指出基于语义知识组织基础上的语义概念检索是解决问题的根本之道,主要探讨在受限领域中如何引入新兴的知识组织技术——本体和主题图实现语义检索,阐述语义信息组织和检索的两条实现路径:基于本体的语义检索及基于主题图的知识导航。 相似文献
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论知识集成环境下的档案信息组织与检索发展 总被引：2，自引：1，他引：1
对档案相关学科数字信息群的知识集成进行研究,档案信息集成发展到档案知识集成,不仅是解决档案信息系统集成中的异构性问题,更重要的是出于档案理论与实践创新和发展的需要;然后将档案的信息组织与检索置于信息学科整体的知识集成环境中,对档案信息组织和档案信息检索的发展进行深入的研究,从总体、功能、数据和环境等多个方面对档案知识组织需求进行分析,以为知识组织框架的设计建立理论体系,知识集成环境下的档案知识检索,应该以多本体为基础采组织领域知识及语义模型,以本体的概念集对资源进行语义标引,以基于本体的知识语言检索领域知识,以自然语言实现概念查询.该成果能够促进和推动档案领域数字信息资源发展,提高档案学科信息利用的质量. 相似文献
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依据语义检索的特征和文本概念的挖掘,通过楚辞研究数据库的语义实践,提出一种以本体知识库建设为核心,由本体开发、资源管理、检索服务三层架构组成,融语义词典、知识地图、跨库查询和专题搜索为一体的个性化关联语义检索模型,力图使当前的语义检索研究跳出实验的框架,促进相关领域文献知识的组织开发与检索利用。 相似文献
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基于本体的图书馆文献资源检索技术研究 总被引：1，自引：1，他引：0
图书馆文献资源共享是图书馆发展的一个重要标志,而知识存储与检索是图书馆文献资源共享与传播的关键技术。目前基于目录分类、关键词等的文献资源检索方法缺乏语义信息,无法满足用户的检索请求。本文引入领域本体作为资源描述的知识基础,提出了基于本体的三层结构智能检索体系模型,并解决了关系数据库存储本体时的知识映射问题。 相似文献
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Milan Grba 《Slavic & East European Information Resources》2017,18(3-4):152-164
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
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《Slavic & East European Information Resources》2013,14(4):25-33
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
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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
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《Slavic & East European Information Resources》2013,14(1-2):123-143
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
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Jon C. Giullian 《Slavic & East European Information Resources》2013,14(3):278-284
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
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Kelly Ahlfeld 《International Information and Library Review》2017,49(4):285-289
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
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《Behavioral & Social Sciences Librarian》2013,32(1):49-54
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
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《Slavic & East European Information Resources》2013,14(1):25-74
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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《The Reference Librarian》2013,54(74):121-164
Summary Although the Internet provides access to a wealth of information, there is little, if any, control over the quality of that information. Side-by-side with reliable information, one finds disinformation, misinformation, and hoaxes. The authors of this paper discuss numerous examples of fabricated historical information on the Internet (ranging from denials of the Holocaust to personal vendettas), offer suggestions on how to evaluate websites, and argue that these fabrications can be incorporated into bibliographic instruction classes. 相似文献