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1.
全文检索技术及其对情报服务的影响   总被引:2,自引:0,他引:2  
全文检索(Full—text retrieval)是基于全文标引的检索技术。置身现代社会,面对Internet、Chinanet、Chtnapac、CERNET这些新生事物和浩瀚的信息海洋.全文检索是快速、准确获取所需信息的有力工具。  相似文献   

2.
图书相关资源整合系统的设计与实现   总被引:2,自引:0,他引:2  
探讨构建图书相关资源整合服务的框架体系与实施方法,提出基于元数据的集成检索与链接服务方案。方案对元数据集成、OPAC中馆 藏及借阅信息截取、全文对象及相关信息的参考链接等关键技术进行详细介绍,并采用TRS信息管理技术来实现图书相关资源的整合服务,以提 高读者对信息资源的获取效率。  相似文献   

3.
近年来,我国标准文献全文数据库发展速度很快,质最也在不断提高,但在实际使用中还存在一些问题,认识并解决现存的问题对于我国标准文献全文数据库的健康发展非常重要。在数据库的收录内容方面要保证内容准确、收录范围适当、提供详细的著录信息及相应的释义、条文说明;在数据库的检索功能方而要提供全面的可检字段和先进的检索技术;在数据库的用户服务方面要方便用户获取自己所需的信息,要为用户提供个性化信息服务,要提高用户与系统之间以及用户之间的交互性。  相似文献   

4.
任博超 《全国新书目》2008,(Z1):111-114
随着计算机技术、网络技术的发展,人们越来越倾向于直接在网上获取有用的信息。期刊全文数据库是集题录、文摘、全文于一体,将期刊文献资源进行回溯整合,并根据其内容进行专业知识结构分类,通过网络提供给多用户同时进行检索的资源平台,众多用户可同时浏览、查询、下载、保存、打印或E-mail检索结果。目前,国内最具代表性的有中国期刊全文数据  相似文献   

5.
文摘数据库以其收录信息全、检索功能强、全文链接、定题跟踪等优势,被图书馆界公认为是系统检索科研信息的首选检索工具,但科研人员却更多地选择Google scholar。文章从信息来源、检索功能等方面对比Googlescholar与文摘数据库,认为文摘数据库仍是系统检索科研信息的首选检索工具,提出通过加强宣传文摘数据库、完善馆藏链接与全文链接、整合电子资源等方式,使更多的科研人员选择文摘数据库。  相似文献   

6.
用户检索获取的信息都是与其当前工作紧密相关的,如果检索系统可以获得这些相关信息,就可以提高检索的性能。实践也证明,获取用户的相关信息可以大大提高检索结果的准确率。  相似文献   

7.
图书馆信息服务中的问题与对策   总被引:3,自引:0,他引:3  
针对科研人员在使用信息资源特别是数字资源中遇到的困难和问题,拟从全文传递服务工作的规范化和制度化、数据质量维护、尽量减少从图书馆主页到获取全文所需点击鼠标的次数、跨库检索、用户培训等五个方面提出对策。参考文献6。表1。  相似文献   

8.
文章介绍了网上标准文献的检索方法及会议全文的获取方法,包括相关数据的利用、搜索引擎等。  相似文献   

9.
SAE的系列产品作为汽车工程的重要科技文献,具有很高的学术价值。本文对Folio Views软件、SAECD-ROM内容、基于Folio Views的SAECD-ROM的检索方法、检索技巧及如何获取全文进行介绍。  相似文献   

10.
运用实地调研及案例分析法调查、分析我国公共档案馆电子文件信息资源公共获取的现状,指出目前我国公共档案馆可供公众获取的电子文件信息资源数量有限、内容单一、电子文件信息资源真实性、完整性、可读性缺乏保障,而公民在线可获取的电子文件信息资源尤其匮乏,在线获取电子文件信息资源的检索系统设计不完善,针对这些问题提出完善立法、加强在线电子文件信息资源全文数据库及检索系统的建设、培育公民的信息素养及加强档案馆工作人员公共服务意识等若干策略建议。  相似文献   

11.
Electronic information resources, such as CD-ROM bibliographic databases, are transforming significantly the way academic researchers find information and the way in which librarians assist academic researchers. CD-ROM and other electronic information resources in academic libraries bring new demands from end-users for services from librarians. In order to meet these new demands for services, academic librarians as information providers must work more closely in an active partnership with researchers and producers of electronic databases.  相似文献   

12.
高校图书馆数据库利用率统计与绩效的研究   总被引:1,自引:0,他引:1  
电子资源的建设与利用逐渐成为衡量一个图书馆实力的重要指标。本文基于高校图书馆的电子资源特别是外文数据库利用主要指标的统计,研究数据库的利用率以及电子资源的实际需求。通过对各数据库的投入支出进行绩效分析以及同类型数据库之间的横向比较,为图书馆馆藏资源建设提供有针对性的指导意见。  相似文献   

13.
The creation of electronic collections is changing the nature of libraries. Until recently an electronic collection meant providing an on-line public access catalog and a few CD-ROMs. Now the technologies exist to network CD-ROMs, load databases on Integrated Library Systems and access a number of commercial databases across the Internet for a fixed fee. With this responsibility comes a need to understand electronic information and options for its access. This article deals with three electronic information formats: CD-ROM, tape loads, and on-line hosts; reviews some of the hardware platforms used for accessing information in these formats; and, discusses some of the issues involved in interconnecting computer systems to increase access to electronic collections.  相似文献   

14.
多类型电子资源在查新检索中的综合使用   总被引:1,自引:0,他引:1  
利用高校图书馆电子信息资源迅速发展的有利条件, 提出了将联机数据库系统与W eb 数据库、CD- ROM 数据库以及Internet 免费资源等多类型数据库综合使用的方法, 以达到提高查新检索质量并降低检索费用的目的。  相似文献   

15.
典型数据库信息分析功能的研究   总被引:1,自引:0,他引:1  
针对图书馆的主要电子资源数据库,从信息分析的角度,就信息分析的概念与方法、数据库信息分析功能的特点进行了较详尽的阐述,并针对典型数据库系统,如CNKI、Web of Knowledge、Scopus、万方数据资源等专利信息服务平台的信息分析功能,从数据库概况、使用方法、功能特色、信息分析手段等方面进行了较全面的剖析,同时介绍了数据库信息分析功能的发展,有益于从事该领域教学或研究的人员参考。  相似文献   

16.
Europe is gradually embracing freedom of information principles while at the same time restricting dissemination of information generated by public agencies through electronic databases. Both Britain and Germany are moving to adopt freedom of information laws, and the European Commission has published a regulation allowing access to European institution materials. These developments are important for the rest of the world, including the United States, because the Internet is already becoming a vast virtual library facilitating global access to statutes, court decisions, and administrative agency decisions that make up the raw ingredients of a rule of law. Meanwhile, however, the European Commission issued a directive limiting certain uses of electronic databases, broadly enough drafted to include electronic repositories of primary legal information. This kind of state-sponsored monopoly over public information is inimical to a rule of law and democratic values. Europeans and Americans should work to realize the increased transparency promised by the freedom of information developments, and work to minimize the extent to which the database directive and similar proposals on this side of the Atlantic restrict redissemination of primary legal information.  相似文献   

17.
Libraries have experienced a great deal of change in communication networks and information technology. The Iranian academic libraries, like other libraries, attempted to adopt the new information technology. It should be realized that although new information technologies and electronic resources are collected on a large scale by academic libraries they are not always used in the same scale. There are some factors, which affect the rate of adoption of each new technology. Rogers in his theory introduced these factors in five categories as relative advantage, observability, trial- ability, complexity and compatibility. This paper investigates the effects of different features of electronic reference materials on the rate of their adoption. Results show that the most effective factors in adoption of electronic reference materials are the ability of electronic reference materials to facilitate information retrieval, shortening the time of searching and fair cost of resources. In addition, it seems that the most problematic factors, which slow down the adoption of electronic reference materials, stem from unfamiliarity of academic librarians and users with computers and searching of databases.  相似文献   

18.
In the era of digital libraries, Web-based electronic databases have become important resources for education and research, providing functionality and ease of use superior to print products. Analysis of usage of such online systems can provide valuable information on user behavior, and on usage of electronic information in general. Furthermore, the findings can be used to improve effectiveness of these electronic systems and identify areas for improvement, ranging from user interface and functionality to documentation and product training. This article analyzes usage of the Taiwan-based ScienceDirect OnSite E-journal system, one of the largest and most heavily used full-text Science, Technology, and Medicine (STM) databases worldwide.  相似文献   

19.
In the context of its role in providing the day-to-day administration of the European Union, the European Commission is responsible both for stimulating the development of interactive electronic information services in Europe and for providing public online databases of information on the Union's activities. Following a brief survey of the background to the Commission's activities, this article outlines the Union's current telecommunications policy and the ongoing transition towards closer integration of the various telecommunications networks in Europe. It then describes the various practical arrangements for obtaining access to the Commission's online services, presents two of its programmes, which are intended to stimulate the professional use of electronic information services, and lists the various databases that it provides for public access.  相似文献   

20.
基于网络的社科信息资源分布及检索策略研究   总被引:18,自引:0,他引:18       下载免费PDF全文
网络社科信息资源包括 :电子期刊资源、图书信息、报纸资源、学位论文资源、电子论坛和电子会议、网络数据库等。可直接进入网站或数据库、利用搜索引擎、利用专业信息资源导航系统获取信息资源。参考文献 6。  相似文献   

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