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检索结果是评价搜索引擎的最直观指标.从便于用户利用的角度探讨了搜索引擎检索结果的评价指标,包括用户满意度、显示内容、显示数量、相关性排序、新颖率等,并提出改善搜索引擎检索结果、提高用户满意度的若干建议. 相似文献
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基于属性测度的Internet搜索引擎评价系统研究 总被引：2，自引：0，他引：2
搜索引擎的使用对Internet网络用户已十分普遍。目前搜索引擎的检索性能还缺乏一个科学、有效的评价方法。本文根据系统工程的基本思想,建立了搜索引擎的评价指标体系,并根据属性测度理论构造了基于属性测度的搜索引擎评价系统,该评价模型可定量地分析搜索引擎的综合性能,并给出了应用实例。 相似文献
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随着互联网上信息数量的不断增长,传统的信息检索技术已经很难满足人们对查询质量的苛刻要求。为了方便用户从检索结果中快速、准确地定位自己想要的信息,集成了文档聚类功能的搜索引擎应运而生。本文讨论了文档聚类技术在搜索引擎中的应用问题,介绍了一些算法,重点分析了Vivisimo这个比较有代表性的聚类搜索引擎,并预测了搜索引擎聚类技术的发展趋势。 相似文献
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互联网的普及和网络信息的大量增加,使网络信息资源检索越来越普及,促进了网络信息检索技术的不断发展。作为网络信息资源检索主要工具的搜索引擎和搜索代理技术也在进步和完善。Google和CopemicAgent分别是网络搜索引擎和搜索代理的典型代表,在网络信息搜索方面既有共性又有区别。文章主要从用户的角度对Google和CopemicAgent的信息检索方式、检索技巧、检索功能等三个方面进行比较。 相似文献
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基于信息技术接受模型的搜索引擎评价体系探讨 总被引：1，自引：0，他引：1
传统的搜索引擎评价指标体系大多是基于学术评价的。随着因特网用户的增加,需要一种基于用户角度的评价指标体系。从信息技术接受模型出发。探讨了如何从用户的信息接受的效果来评价搜索引擎。 相似文献
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顾乐先 《中国科技资源导刊 (中国信息导报)》2005,(2):56
传统的Web搜索引擎没有考 虑用户的兴趣爱好,搜索出的信息 量庞大,经常将与用户兴趣不相关 的文档提交给用户。这种现象的发 生可能是由于用户所提交的关键 词意义不够精确造成,也可能是由 于搜索引擎对文档发现和过滤的 能力有限造成的。因此,在信息发 现和过滤的过程中应该考虑通过 智能代理技术来提高检索能力。 相似文献
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中文搜索引擎检索语言研究 总被引：1，自引：0，他引：1
中文搜索引擎在很大程度上满了用户检索中文网络信息资源的要求，但也存在检索效果不够理想等问题，本文人检索语言的角度对现有中文搜索引擎进行分析，指出将检索语言的原理与方法应用于中文搜索引擎，必然极大地提高搜索引擎的检索效率。 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