共查询到20条相似文献，搜索用时 62 毫秒
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任辉 《现代图书情报技术》2007,2(5):85-88
检索过程中，关键词灵活、易用，检索效率低。通过中文域名与关键词相结合技术对Web上生物学资源检索途径进行研究，通过泛域名解析技术、重定向技术和添加算法，实现生物学的站点、专题与网页的搜索技术。 相似文献
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文章主要分析了Web InfoMall和WICP的体系结构,并基于Web InfoMall提供的中文网页测试数据集,分析了中文网页、网站以及域名的规模,保存格式等。结果表明,中文网页、网站以及域名的分布与全球互联网都遵循近似相同的规律,同时也有其自身的特点。另外,中文网络资源归档在内容收集、长期保存的格式及实现等方面已经取得了实质性进展。 相似文献
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中文域名信息资源管理与保护 总被引：3，自引：0，他引：3
本文分析了中文域名信息资源管理与保护的现状 ,从技术效率层面和权利价值层面着手 ,提出了中文域名信息资源管理与保护五大对策 :(1)要拥有中文域名的主权 ;(2 )简化中文域名注册手续 ;(3)完善中文域名预留制度 ;(4 )打击中文域名恶意抢注 ;(5 )正确处理中文域名争议。 相似文献
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基于Nutch的专题网页资源采集服务系统的设计与实现 总被引：1，自引：0，他引：1
常智荣马自卫李高虎 《现代图书情报技术》2010,26(3):19-26
在数字图书馆系统集成应用的框架下,提出基于Nutch的专题网页资源采集服务系统设计方案。该方案引入信息过滤模块、基于计算机通信领域专业词典的中文分词模块、GUI信息定制模块、词典和关键词管理模块等,保证采集和获取过程中资源的专题性和系统的可管理性以及易用性。重点对文本解析过滤、Plugin插件开发以及搜索结果的层次化自动聚类等相关技术进行深入研究。通过基于Webservice的服务接口,实现其在数字图书馆资源层的集成应用。 相似文献
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基于知识库的网页自动标引和自动分类系统的设计 总被引：15，自引：0，他引：15
针对中文网页文本信息特征,提出了信息标引和组织方案,并构建了一个基于知识库的网页自动标引和自动分类系统。中文网页的自动标引和自动分类思想主要基于知识库进行。知识库实际上是一个基于《中图法》的专家知识系统,包括了中图法库、汉表库、分类号主题词对应库、同义词库、关键词库等若干数据库。在确定网页基本信息标引源的基础上,中文网页主题标引运用了基于词频的统计加权法;通过与分类号一主题词对应库主题词串的词面相似度计算,进一步完成中文网页的分类标引。最后还讨论了新词识别等技术问题。 相似文献
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《中国科技资源导刊 (中国信息导报)》2006,(6)
据国务院信息化工作办公室最近发布的《2005 年中国互联网络信息资源数量调查报告》显示,中文网页总数猛增,CN域名注册量升至全球第六。报告显示,截止至2005年12月31日,全国域名总数约260万个,同比增长40％。其中,CN域名数量约110万个,同比增长154％,成为亚洲最大 相似文献
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互联网上免费的中文学术资源数量庞大,但实用的专门检索工具仍然或缺.文章以网络中文学术文献的识别与检索为目标,调查分析网络学术文献网页的特征,并以非学术文献网页作为参照,验证所发现特征的可靠性.研究结果显示,学术文献网页在关键词词频、链接数量和相关链接比例等特征方面与非学术文献网页具有明显差别,差异程度都大于75％,属于程度明显,能较好地用于区分学术文献网页与非学术文献网页,为今后系统开发学术文献网页的自动化识别工具提供了依据和理论支持. 相似文献
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本文论述网络环境下中文网页信息的自动标引技术，具体研究分析了面向信息检索的自动分词与词表技术，提出了一个中文网页自动标引的改进方案，以更好地实现中文网络信息资源的自动处理，最后从文档到知识转变的视角，研究第三代网页内容搜索中应用中文信息自动标引的技术问题。 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