数据库内容及检索功能钟似璇 Sixuan Zhong szhong@PPT.ppt

* A slew of software and web based RSS readers are for free on the internet. In this example you can see how records are delivered to “Newsgator.” I can view new search results as I check on all of my news sources, business news, weblogs and whatever else I choose to feed into my RSS reader. The point is that we are providing yet another option for delivering results to researchers in the ways they prefer to receive them. 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 Databases Compendex 最完整的工科文摘数据库 1969至今，共有1100万文献 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: 个人帐号 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 快速检索（Quick Search） 选择数据库 输入检索文字 选择限制条件 高级检索（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 检索结果 － Making Sense of Results Page 检索结果 Facets 检索结果的管理 结果记录的管理 : 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 结果太多吗？可能是因为不够具体。 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 Feature Facets 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 facets Including Terms Excluding 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）？ 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 Thesaurus Thesaurus Options: - Select “Search” to search