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近年来国际学术界在本体对应研究方面呈现三个主要特征:一是投入了更多关注,使相关研究日臻成熟;二是在开放语义网络环境下,研究人员更青睐于多本体的匹配与对应,并且本体对应已成为学术界构建适于分布式网络结构的多本体协同系统的主要手段;三是越来越多的研究成果已经从基础理论研究转向了针对具体问题的实证研究。但开放性、分布式的语义Web环境对现有不同本体间的协调应用提出了挑战。通过对2000年以来国际学术界关于本体协调相关文献和研究成果的梳理,阐明了以本体映射为核心的本体协调各要素之间的关系,并对本体合并、本体集成与本体对应三条本体协调主要发展路径的前沿热点进行了分析,指出未来本体协调的相关研究将继续沿着"本体构建→本体合并→本体集成→本体对应"这一总体路径向前发展。 相似文献
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文章从构建全局模式本体的角度,提出了基于本体集成的资源模型,分析了基于本体的全局模式信息集成方法及数字资源整合结构,为解决数字资源服务中的统一性、高效性等问题提供了一种综合性的解决方法。 相似文献
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文章从构建全局模式本体的角度,提出了基于本体集成的资源模型,分析了基于本体的全局模式信息集成方法及数字资源整合结构,为解决数字资源服务中的统一性、高效性等问题提供了一种综合性的解决方法。 相似文献
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知识管理中本体演化研究 总被引：3，自引：1，他引：3
领域知识和术语的复杂性和多样性是影响知识管理系统成功的关键。本体将在开放式知识管理系统中起到至关重要的作用 ,它通过定义精确的共享术语 ,以提供某一特定领域可重用的知识。但是这些知识并不是静态的 ,而是随着时间的推移不断演化。领域的改变、自适应不同的任务、或概念模型的改变都要求本体的变更。本体演化的支持在本体的分布式开发和应用中非常重要。本文首先对知识管理中本体演化的原因和所带来的问题进行分析 ,然后讨论了本体演化管理的系统框架和应用实例 ,着重强调了本体标识和本体变化机制的定义 ,并对今后的研究工作进行了展望 相似文献
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基于本体的语义检索是提高信息系统检索精确度的有效途径之一.概念云是云模型在信息领域的应用,是本体中的概念按照一定算法在页面中的排列聚合.基于本体与概念云来构建信息检索系统,其设计方案是采用自上而下与自下而上的两种方式相结合构造全局本体、局部上层本体、局部下层本体;再使用Web2.0环境下的内容管理工具进行本体中概念的管理与组织,从而形成概念云;最后以本体与概念云来完善信息检索系统,既提高检准率,又满足用户对知识获取的需求,并可为其他本体系统构建者提供对概念的获取与重用用户知识的功能.本文还描述了本系统语义检索功能实现的原理,阐述了该系统基本实现步骤和关键细节,并展示了该系统的部分功能. 相似文献
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在考查国内外一些本体项目的基础上,同时考虑到本体的分布性是必然的,采用混合方式构建本体,并使用分布式数据库实现。实际设计中基于项目前期成果新改造的概念间关系,在ASP.NET平台下设计开发分布式本体编辑系统ADORES来构建分布式本体库。介绍ADORES的设计思想、功能,重点介绍ADORES的难点及实现方法,并给出OWL、SKOS标准描述格式导出、概念树、关系可逆性等难点的部分代码。 相似文献
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本体驱动的数字图书馆信息资源语义互操作研究 总被引：3，自引：0，他引：3
鞠彦辉 《图书馆理论与实践》2010,(1)
从本体的建立、本体间的映射以及语义互操作服务三个方面构建了本体驱动的数字图书馆异构信息资源语义互操作框架,将信息资源互操作和共享的问题转化为本体间的映射问题,从而将有效实现分布式数字图书馆之间异构信息资源的语义互操作。构建本体的最终目的是实现推理,利用文献的等级结构和定义的属性可以在转化的MARC上实现推导文献间关系的目标。本体映射是解决不同本体间的知识共享和重用问题的主要技术。完成本体映射后所构建的领域本体服务器是进行信息互操作与集成的核心,是提供语义互操作服务的基础。 相似文献
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中文叙词表本体一致性检测机制研究与实现 总被引：3，自引：0，他引：3
本文研究了中文叙词表本体（OntoThesaurus,即基于中文叙词表建立的本体知识库）的一致性检测机制,并将其应用在中文叙词表本体共建共享系统（OTCSS）的修订意见提交、叙词表本体更新和全局检查等相关过程的实现中,取得了良好的应用效果。 相似文献
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本体模块化:特征、描述与方法 总被引：4，自引：0，他引：4
近年来,本体模块化研究受到研究者的普遍关注.本文全面综述了本体模块化研究的最新进展,包括本体模块化特征、形式化描述语言及构建与选取方法.在形式化描述方面,主要研究成果有分布式描述逻辑、ε-连接及基于包的描述逻辑,比较分析了它们的特点和关联,讨论了有待进一步解决的问题.在构建和选取方面,介绍了模块化设计模式、模块化划分与抽取方法的最新研究成果. 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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Josie Barnes Parker 《图书馆管理杂志》2013,53(6):731-737
ABSTRACTIn 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
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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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《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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Neil De Young 《Publishing Research Quarterly》2009,25(3):139-146
Some key questions for publishers in today’s market are: Could Amazon’s recent merger and acquisitions strategy create a disruptive or paradigm shifting business model in the publishing industry? Do their recent actions post mergers and acquisitions illustrate a predicable pattern of behaviour that publishers can strategize around? This paper will explore these questions and look at some of the possible reasons behind Amazon’s business practices and the possible consequences to publishers. 相似文献
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Barbara Lison 《图书馆管理杂志》2013,53(2):180-187
ABSTRACTGerman authorities are expecting more than 1 million refugees by the end of 2015. These people come to Germany to seek protection and assistance and to build a new life, therefore it is important to welcome them and to assist them in their integration as soon as possible. This situation creates a versatile and perfectly fitting opportunity for cultural and educational programs, including libraries, which can play a vital role in this integration process. The key to integration is the knowledge of the German language, and the most important challenge now is to teach the necessary language skills to as many asylum-seekers as possible. 相似文献
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《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
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Michelle Rodino-Colocino 《Critical Studies in Media Communication》2013,30(5):375-390
This essay investigates key moments in the history of personal digital assistant (PDA) marketing to women. Analyzing promotional texts for three PDAs that received considerable press coverage from 1999 to 2001, this essay explores the cultural significance of the convergence of anxieties about women's place in the gendered division of labor with the computer industry's changing marketing imperatives. Drawing on an array of promotional texts, including news articles, press releases, promotional Web sites, and ads appearing in newspapers and magazines, this paper tells the story of how the computer industry aimed to sell smaller, faster computing devices to women while promising to mediate and thus reproduce women's overwork as paid and familial laborers. After experimenting with the PDA as a sexy fashionable gadget for working women, marketers approached women as mothers with “Audrey,” an Internet appliance designed for the kitchen. 相似文献
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Lindsay Dillingham 《Journal of Business & Finance Librarianship》2013,18(4):313-327
This study explores the attitudes and actions of bank managers toward communication spending during recession. Results of this study indicate that organizational leaders cut communication spending early during recession and also erroneously rely on the bank's financials to mitigate irrational customer withdrawals. This research is used to illustrate the need for public librarians to meet the needs of bank stakeholders when their institution ceases to communicate during crises, for academic librarians to educate students in undergraduate and graduate programs regarding heightened information needs during recession, and for corporate librarians to understand a potential avenue for competitive advantage during recession. 相似文献
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指出共链分析已在商务网站评价、竞争情报分析、商业信息挖掘等领域有广泛应用。综合运用共链分析与社会网络分析的方法,对国内市场份额排名前50位的电子商务网站的企业竞争态势与竞争关系及地位进行综合分析,并对企业间潜在竞争关系挖掘进行初步探索,以期能对竞争情报方法论研究和国内电子商务市场的发展提供一定的启示和参考。研究发现,共链网络中节点的程度中心性与企业实际的市场份额之间存在显著的相关关系,且竞争关系多存在于不同组织下业务类型相似的企业实体,而有些互补服务的企业之间则是合作关系的存在,这一发现或许能为未来电子商务市场发展战略规划与制定提供一定的指导和帮助。 相似文献