数据库内容及检索功能PPT课件.ppt

www.ei.org数据库内容及检索功能数据库内容及检索功能钟似璇 (Sixuan Zhong s.zhong@)Ei中国区经理Engineering Village: Bibliographic DatabasesCompendex •最完整的工科文摘数据库•1969至今，共有1100万文献•覆盖覆盖190个工程学科，包含：化工、电工电子、机械、土木、矿业等等Getting started: 个人个人帐号号Register to create your personal account at Use Personal Account to: •Set up e-mail and RSS alerts•Tag records •Create groups•Save records and searches快速快速检索（索（Quick Search） ）选择数据库输入检索文字选择限制条件高高级检索（索（Expert Search） ）输入检索式浏览按字母顺序排列的索引参考数据字段定义检索索结果果 －－ Making Sense of Results Page检索索结果果Facets检索索结果的管理果的管理结果果记录的管理的管理 :-挑选记录-选择显示格式-保存, email, 打印, 下载数据结果条数、结果排列全文链接结果太多果太多吗？可能是因？可能是因为不不够具体。

具体•限制检索字段： document type, publication years, language, etc. •从主题表（thesaurus）里找更具体的关键字•关闭autostemming•检查截词• cat* → cat, catalyst, catapults, caterpillar, etc.•检查布尔运算符 OR、 AND•从facets里找启发Faceted Search FeatureFacets include:•Database (when searching multiple)•Author Name•Author Affiliation•Controlled Vocabulary•Year•Language•Classification Codes•And more可利用 include或exclude来找到更理想的结果参考记录条数可将这些统计数字导出至表格Including & Excluding Terms From Facets点击 键可将此字段取消“+” sign appears between initial keyword and terms included from facets“-” sign appears between initial keyword and terms included from facetsIncluding TermsExcluding TermsIndividual Records•Search terms are highlighted in the abstract to show relevance•Controlled terms and links to thesaurus offer additional possibility结果不理想（太少了）？果不理想（太少了）？•利用Ei main headings及classification codes•浏览索引（indexes），从而找到作者名字的不同写法•打开autostemming•利用截词 (*) •使用准确的布尔运算符： AND instead of OR•从主题词表里（thesaurus）找到更广泛的关键字ThesaurusThesaurus Options:- Select “Search” to search any terms- Select “Exact Term” to find Thesaurus details for a known Ei controlled term- Select “Browse” to scan an alphabetical list of index terms•Click terms to see Thesaurus details. •Select terms to include in searchThesaurus• Click on to see more information about the termSelected thesaurus terms are automatically added to your search form记录标签（ （Record Tagging） ）•Search other users’ tags to gain new perspectives•Share tags with other users•Organize records of interest for yourself and groups记录标签（ （Record Tagging） ）•Assign meaningful keywords•Choose with whom to share:ØPublic = All Engineering Village users can see the tagsØMy Institution= only people from the users’ organization can see tagsØPrivate = Only the user can see their tags•Or create groups to share tags with membersRSS (Really Simple Syndication)What is RSS?•An XML format for distributing content on the internet •Also known as syndicationWhy is RSS Important?•Content is delivered to the reader as it is updated •Set up alerts so you’re notified any time a new record that fits your search criteria is added to the database•Alternative to email alertsRSS (Really Simple Syndication) •Copy the link provided and paste it in your RSS Aggregator to receive alerts.•Click the RSS icon if you’d like to be updated when new records are added that fit the search criteria.RSS Feed From Engineering Village•Paste url from box on Engineering Village RSS delivered to your readerBlog This•Link from a blog to a record of interest on Engineering Village•Create current awareness by highlighting new publications in a popular subject area•Create a forum from which to collaborate with colleagues in your area of research•Share information with an audience outside your organizationBlog ThisClick the “Blog This” button in the record’s abstract or detailed view.Copy the code from the box in the screen that appears and paste it into your blog post.Blog a Record•Once published, the title will link to the record’s abstract.•Give the post a title•Paste the link from Engineering Village’s “Blog This” box•PublishSearch Tips and Help icons provide user assistanceAdditional resources on Help• Source list• Training materials on EV tools and databases 。