文献数据库的检索特点及使用技巧   总被引：3，自引：0，他引：3  

梁花侠  罗红彬  杜香莉 《大学图书情报学刊》2004,22(1):43-45

随着高校图书馆引进的中外文数据库及建立的局域网络检索系统 ,教学科研人员有了快捷、高效、准确查获文献信息的硬件环境。为使读者更好地利用各种数据库进行文献检索 ,文章介绍了文献数据库的检索特点 ,并就数据库检索中检索策略制定的技术性问题 ,如 :检索词的选择、检索式的编写等做了详细介绍。  相似文献   

信息检索课双语教学探讨   总被引：6，自引：1，他引：6  

王芳 《江西图书馆学刊》2004,34(3):60-61

在双语教学实践的基础上，论述了在信息检索课中实行双语教学的必要性、可行性和教学方法，分析了双语教学面临时问题，并提出了对策。  相似文献   

高校教学参考书信息管理及服务系统的研发   总被引：9，自引：0，他引：9  

欧阳美林 《现代图书情报技术》2004,20(4):78-81

从教学参考书信息管理与服务系统的研发实践出发, 充分论证了图书馆开发此系统的意义及可能。融合了资源整合等思想设计了一套完整的方案, 在系统功能方面特别增加了符合时代发展的电子图书借阅权限控制、多馆联合共建共享、网上提交等功能, 为了实现这些功能还研究出一些实用的技术方案。  相似文献   

教学资源可视化方法   总被引：1，自引：0，他引：1  

周宁  杨春雨  王洪艳  焦洁 《现代图书情报技术》2004,20(11):58-60

教学资源信息可视化是教学改革与创新的重要内容。本文讨论了教学课件设计中的知识点分割、多媒体素材的制作、资源库元素（多媒体对象）的XML/RDF描述、索引机制和可视化方法。  相似文献   

实行素质教育,增强自学能力--网络环境下的检索课教学   总被引：9，自引：0，他引：9  

陈继红  洪湛  青晓  杨兆军 《图书馆建设》2004,(1):95-97

文章叙述了我校的文检课教学内容改革,以及所研制的教学课件和开展网上教学的体会。  相似文献   

基于粗糙集加权的文本分类方法研究   总被引：6，自引：0，他引：6  

胡清华  谢宗霞  于达仁 《情报学报》2005,24(1):59-63

文本自动分类是当前智能信息处理中一类重要的研究课题。本文分析了基于统计理论的文本分类的基本特点,提出采用可变精度粗糙集模型中的分类质量构造新的特征词权重计算公式。这种新的加权方法,相对于广泛使用的逆文本频率加权方法,大大改进了文本样本在整个空间中的分布,使得类内距离减少,类间距离增大,在理论上将提高样本的可分性。最后利用支持向量机和K近邻两种分类器,验证了这种新的加权方法对分类效果确实有所提高。  相似文献   

图书馆与慕课课程的互动推广路径探析     

胡永生 《高校图书馆工作》2018,(1):81-83

针对慕课的快速发展及国内外图书馆界对慕课的关注及推广现状,探讨图书馆推广与服务慕课课程的互动对策。图书馆在面向院系教学服务的过程中,可将慕课推广与图书馆推广有机结合,依托图书馆空间与服务,推广慕课理念和课程,同时借助宣传慕课理念和课程,推广图书馆资源和服务。并从慕课资源的整合与导航,学科服务,资源荐购服务,图书馆新媒体宣传,图书馆专题推广活动五个途径探讨了互动推广的途径。  相似文献   

The IR Has Two Faces: Positioning Institutional Repositories for Success     

John Novak  Annette Day 《New Review of Academic Librarianship》2018,24(2):157-174

This article describes the ongoing efforts at University of Nevada, Las Vegas (UNLV) Libraries to evolve the role of the institutional repository (IR) and to effectively position it within the context of the Libraries’ collections, research support, and scholarly communication services. A major component of this process is re-examining the fundamental aims of the IR and aligning it to the Libraries and the campus strategic goals. The authors situate UNLV Libraries’ experience within the context of the current literature to provide background and reasoning for our decision to pursue two, at times conflicting, aims for the IR: one for scholarly communication and another for research administration.  相似文献   

Technological research in the EU is less efficient than the world average. EU research policy risks Europeans’ future     

Alonso Rodríguez-Navarro  Ricardo Brito 《Journal of Informetrics》2018,12(3):718-731

We have studied the efficiency of research in the EU by a percentile-based citation approach that analyzes the distribution of country papers among the world papers. Going up in the citation scale, the frequency of papers from efficient countries increases while the frequency from inefficient countries decreases. In the percentile-based approach, this trend, which is uniform at any citation level, is measured by the e_p index that equals the P_{top 1%}/P_{top 10%} ratio. By using the e_p index we demonstrate that EU research on fast-evolving technological topics is less efficient than the world average and that the EU is far from being able to compete with the most advanced countries. The e_p index also shows that the USA is well ahead of the EU in both fast- and slow-evolving technologies, which suggests that the advantage of the USA over the EU in innovation is due to low research efficiency in the EU. In accord with some previous studies, our results show that the European Commission’s ongoing claims about the excellence of EU research are based on a wrong diagnosis. The EU must focus its research policy on the improvement of its inefficient research. Otherwise, the future of Europeans is at risk.  相似文献   

Teaching skills of student teachers: Calibration of an evaluation instrument and its value in predicting student academic engagement     

《Studies in Educational Evaluation》2014

Student teachers are expected to develop their teaching skills sooner and more rapidly. However, a sound evaluation instrument that can be used to diagnose and monitor the skilfulness level to aid formative assessment of student teachers is still limited. This article is aimed to calibrate and validate a teaching skill evaluation instrument for use in secondary education. A total of 264 student teachers in the Netherlands participated in the study. Rasch and multilevel analyses were used. Results suggest that the evaluation instrument meets the restrictive assumptions of the Rasch model and has predictive value for academic engagement. This adds validation evidence and justifies the calibration of the evaluation instrument to be used for monitoring the development of teacher's teaching skills.  相似文献