Google Scholars

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    Google Scholars - Presentation Transcript

    1. Google Scholar: Introduction and Evaluation Nan Qu (Subject Librarian, Capital Normal University Library, Beijing, China) Michael Bailou Huang (Associate Librarian, Health Sciences Center Library, Stony Brook University, USA)
    2. 大纲 (Outline)
      • 概述 (introduction)
      • 内容 (scope and coverage )
      • 检索方法 (retrieval methods )
      • 结果显示 (search results )
      • 评价 (evaluation )
      • 总结 (conclusion)
    3. 概述 (Introduction)
      • 登陆 (launched ) : 2004 年 11 月
      • 网址: http://scholar.google.com
      • 理念 (faith) : Stand on the shoulder of giants
    4. 内容 (Scope and Coverage )
      • Google Scholar 收录来自学术出版商、专业协会、预印本库和大学等方面的学术信息资源,内容覆盖同行评论的文章 (peer-reviewed papers) 、论文 (theses) 、图书 (books) 、预印本 (preprints 、摘要 (abstracts) 、技术报告 (technical reports) 等学术文献。
    5. 内容( Three Sources )
      • 覆盖学术和技术领域的专业数据库。
      • (proprietary databases covering a range of scholarly and technical disciplines)
      • 学术性和技术性出版商的网页。
      • (Web sites of scholarly and technical publishers)
      • 研究机构(通常是大学)的局域网。
      • (intranets of research institutions<usually universities>)
    6. 检索方法 (Retrieval Methods )
      • 简单检索 (Basic Search)
      • 高级检索 ( Advanced Scholar Search )
      • 参数设置 ( Scholar Preferences )
    7. 简单检索界面 运算符: And 、 + 、 site 、“ ”、 Filetype : pdf 、 Memory – intitle: “visual memory” 高级检索 参数设置
    8. 简单检索结果
    9. 高级检索界面 按照作者检索 按照出版物检索 按照出版日期范围检索 限制主题范围检索 检索词限于文章标题的检索或者全文检索 Memory Visual memory 选择结果页面显示搜索结果条数
    10. National Library of China 或 NLC China Scholar Preferences
    11.  
    12. 结果显示 (Search Results)
      • 三类记录 (three record types)
      • 互联网文献( Web documents )
      • Article citation
      • Book citation
      举例说明 (for examples)
    13. 1 2 3
    14.  
    15. 正面评价 (Pros)
      • 对用户 (for users)
      • 对于无法获取收费的专业索引 / 文摘数据库的用户有重要意义。 (an important service for those who do not have access to the most appropriate fee-based indexing/abstracting databases.)
      • 等价于几个价格昂贵的传统在线索引 / 文摘数据库。 (equivalent to several traditional online indexing/abstracting databases.)
      • 对图书馆 (for libraries)
    16. 存在的问题 (Cons)
      • Google Scholar 击中的记录远少于出版商自带搜索引擎得到的结果 。
      • ( Google Scholar vs. the publishers’ search engines )
      • 举例说明 (for examples)
      • Google 公司从未透露过其数据库内容更新的时间。 ( Google has not disclosed how often it is updated.)
      • 两项研究 (two researches)
    17.  
    18. 两项研究 (two researches)
      • Wleklinski, J. M. (2005). Studying Google Scholar: Wall to wall coverage? Online (Weston, Conn.), 29 , 22-6.
      • Jacso, P. (2005). Google Scholar: The pros and the cons. Online Information Review, 29(2) , 208-14.
    19. 存在的问题( the cons )
      • 在内容方面, Google Scholar 有时会收录一些非学术性的资料;同时也会收录一些不准确的资料 。 (Sometimes, Google Scholar crawler returns material unlikely for a scholarly database —library handbooks, course syllabi, and undergraduate term papers.)
    20. 存在的问题 (Cons Continued)
      • 在检索结果排列方面,由于根据引文被引用情况排列,因此那些排在前面的论文往往是年份较早的,同时 Google Scholar 又没有提供按日期排列的服务 。
      • 改进:“近期文章”按钮
      • 排序方式无法自订
    21.  
    22.  
    23. 总结 (Conclusions)
      • Google Scholar 的面世,为科研用户提供了一个强有力的学术搜索工具,它可以帮助用户第一手的全面了解某一领域的学术文献,可以帮助用户屏蔽掉网上许多无关信息,可以帮助用户找到信息的来源,可以帮助用户发现其还不了解的内容。 (It helps us find out what we don’t know.)
    24. THE END
      • THANK YOU
      • FOR YOUR ATTENTION.
      • Presenter : Nan Qu
      • E_mail:libxkgy2@mail.cnu.edu.cn

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