浅议研究生文献检索能力的培养

信息素养教育是培养研究生终身学习能力的重要途径,是造就创新型研究生的重要手段。作者主要分析总结了在研究生期间加强研究生文献检索能力的一些具体做法和经验。通过引导研究生选修文献检索课,熟悉学校图书馆资源和其他网络资源的使用,并在研究生教学中引入文献检索要素,以及利用课题组会制度强化文献检索实践,进而不断培养和提高研究的文献检索能力。     

Copyright and IPR management for cultural heritage digital content in peer-to-peer networks

As a general and effective protection measure for copyright violations, which occur with the use of digital technologies including peer-to-peer (P2P) networks, copyright owners from the cultural sector often use Digital Rights Management (DRM) systems and digital watermarking techniques so as to encrypt copyright information to the cultural content. In other cases, copyright owners restrict or even block access to the digital cultural content through the Internet and the P2P infrastructure. This chapter claims that DRM and P2P can be quite complementary. Specifically, a P2P infrastructure is presented which allows broad digital cultural content exchange while on the same time supports copyright protection and management through watermarking technologies for digital images.     

The NICE OECD countries' geographic search filters: Part 2—validation of the MEDLINE and Embase (Ovid) filters

Objective:We previously developed draft MEDLINE and Embase (Ovid) geographic search filters for Organisation for Economic Co-operation and Development (OECD) countries to assess their feasibility for finding evidence about the countries. Here, we describe the validation of these search filters.Methods:We identified OECD country references from thirty National Institute for Health and Care Excellence (NICE) guidelines to generate gold standard sets for MEDLINE (n=2,065) and Embase (n=2,023). We validated the filters by calculating their recall against these sets. We then applied the filters to existing search strategies for three OECD-focused NICE guideline reviews (NG103 on flu vaccination, NG140 on abortion care, and NG146 on workplace health) to calculate the filters'' impact on the number needed to read (NNR) of the searches.Results:The filters both achieved 99.95% recall against the gold standard sets. Both filters achieved 100% recall for the three NICE guideline reviews. The MEDLINE filter reduced NNR from 256 to 232 for the NG103 review, from 38 to 27 for the NG140 review, and from 631 to 591 for the NG146 review. The Embase filter reduced NNR from 373 to 341 for the NG103 review, from 101 to 76 for the NG140 review, and from 989 to 925 for the NG146 review.Conclusion:The NICE OECD countries'' search filters are the first validated filters for the countries. They can save time for research topics about OECD countries by finding the majority of evidence about OECD countries while reducing search result volumes in comparison to no filter use.     

新版ESP@CENET网上检索新增主要功能及其运用

欧洲专利局网站从1998年创建开始,历经了7年多的时间,对esp@cenet网上检索进行了数次更新,使检索方法更为便捷,检索界面更加人性化,为用户提供的信息更全面、更准确。特别是在老版数据的基础上,增加了免费的专利法律状态显示功能和集专利文献中所有图形于同一界面显示的浏览功能。本文描述了这几方面新增添的功能,并就一些检索结果与STN商业数据库系统进行了比较。     

基于DialUnit的DIALOG检索新策略

本文主要探讨世界上最大的联机情报检索系统 Ｄ Ｉ Ａ Ｌ Ｏ Ｇ 的 Ｄｉａｌ Ｕｎｉｔ 收费新政策及其检索新策略。首先介绍了 Ｄｉａｌ Ｕｎｉｔ 收费政策,包括 Ｄｉａｌ Ｕｎｉｔ 是什么、如何计算其数量及费用。然后,针对这一收费新政策,提出了一系列检索新策略,包括注意事项、与系统的连接、数据库的选用、检索式的编制及输出选项等,旨在降低联机检索的费用,提高检索的效益。     

WWW信息检索探讨

首行讨论了WWW及其搜索引擎的检索特性和功能,在描述某些基本搜索引擎并给出它们URL的基础之上,详细介绍了目前在Internet上进行信息搜索的方式方法,并讨论了在信息检索过程中应注意的一些问题。     

中文报刊混编数据库题名的排序与检索

针对中文报刊混编数据库报刊题名字段排序的“假汉语拼音排序”问题,利用“中文报刊人机通用无号排序法”对中文报刊混编数据库的排序和检索进行考察,提出解决报刊题名的人机通用无号排序与检索以及报刊题名的计算机快速检索等问题的方法。     

基于三阶段过程的信息搜索影响因素分析

在总结相关研究的基础上,针对科技数据库网站及其用户的特征,提出影响科技数据库网站用户信息搜索行为因素的三阶段分析模型,并在分解每一个阶段任务的基础上,对影响科技用户信息搜索的具体因素进行了深入地剖析,以期为后续的研究提供理论分析的基础。