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Google Scholars
 

Google Scholars

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Google Scholars Google Scholars Presentation Transcript

  • 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)
  • 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)
  • 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
  • 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。
  • 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>)
  • 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 )
  • 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
  • 简单检索结果
  • 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
  • National Library of China 或 NLC China Scholar Preferences
  •  
  • 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)
  • 1 2 3
  •  
  • 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)
  • 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)
  •  
  • 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.
  • 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.)
  • 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
  •  
  •  
  • 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.)
  • THE END
    • THANK YOU
    • FOR YOUR ATTENTION.
    • Presenter : Nan Qu
    • E_mail:libxkgy2@mail.cnu.edu.cn