首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 62 毫秒
1.
陈能华 《图书馆》1997,(1):22-24
本文揭示了定量检索与定性检索的内在联系,揭示了定量检索的本质就是定性检索,阐明了“用定量检索方法可以检索出定性检索方法检索不出来的文献”的原因与实质,对定量检索与定性检索的同一性进行了分析,并探讨了阈值的量变引起检索结果发生质变的规律  相似文献   

2.
语义检索研究综述   总被引:10,自引:0,他引:10  
随着语义网技术的发展,语义检索的研究已成为热点领域。本文首先分析了传统网络检索技术的局限性。然后在对若干研究与应用调研的基础上,对当前语义检索的研究进行了综述,详细分析了目前的两类语义检索研究:语义支持的检索及语义网检索,对语义网检索更进一步分析了其三种不同的研究方向:语义网文档检索、实例检索、关系检索。  相似文献   

3.
文章从检索数据库、检索途径、检索界面、检索到信息资源的内容和检索技术等方面比较了光盘检索和网络检索的情况, 并针对它们的优缺点提出了使用光盘和网络检索的一点建议。  相似文献   

4.
个性化检索可以提高检索相关度,用户需求匹配度以及用户检索满意度,是未来档案检索的一个重要方式。本文分析了个性化检索的内涵和特点,以及关键因素,扫描了当前档案检索的现状,指出个性化检索对档案检索带来的变革。  相似文献   

5.
通过对国内外12个常用电子图书服务平台检索功能比较分析,发现在检索方式上,各电子图书服务平台分类的依据不同,提供的类目也不相同,虽然提供的可检字段、检索限制和检索规则各不相同,但都提供了基本检索和高级检索功能。在检索结果的显示方面,各平台提供了不同的显示界面和显示功能,但基本上都有页面导航、二次检索或重新检索功能,都有对检索表达式与命中检索结果数量的描述。对其存在的问题,文章提出了改进措施:完善主要检索方式,规范检索条件,扩大检索资源的范围,优化检索结果。  相似文献   

6.
音频检索综述   总被引:7,自引:0,他引:7  
本文根据音频检索的研究现状,综述音频检索方法,讨论了一些音频检索关键技术:音频特征提取、音频分割和分类、基于内容的音频检索和音乐检索方法等。最后指出音频检索的不足并展望了音频检索技术的发展前景。  相似文献   

7.
ISI Proceedings数据库检索方法   总被引:1,自引:0,他引:1  
杨伟娜 《中国索引》2008,6(1):55-57
本文在简述ISI Proceedings数据库及功能的基础上,分别从快速检索、普通检索、高级检索三个不同的检索途径介绍了ISI Proceedings数据库的检索方法及主要功能,并举例说明了若干检索技巧。  相似文献   

8.
本文概述了万方《中国学位论文全文数据库-镜像版》检索平台的特点,个性化组合检索方法、关联检索、二次检索、分类检索等检索方法和检索技巧。  相似文献   

9.
九个常用中国专利检索网站比较研究   总被引:1,自引:0,他引:1  
通过实证检索分析,对中国专利(未包括香港、澳门和台湾地区专利)的检索网站进行了全面的检索比较研究,从现有的9个专利检索网站中挑选出了文献检索课教学必讲授、检索实践必利用的最佳专利检索网站,为专利检索教学内容的选择和检索实践中专利检索系统的选择提供了有价值的参考依据.  相似文献   

10.
基于WWW的信息资源检索策略探析   总被引:1,自引:0,他引:1  
检索策略对于取得满意的检索结果至关重要。本文对联机检索、光盘检索和WWW检索等检索方式中的检索策略进行了比较,并对WWW环境下检索策略的构造提出了建议。  相似文献   

11.
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   

12.
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   

13.
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   

14.
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   

15.
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   

16.
ABSTRACT

German 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   

17.
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   

18.
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   

19.
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   

20.
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   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号