ProQuest® Smart Search中的运算符与字段限制,总有一些记不住,现备档一下:

1、运算符:布尔、近似、相近运算符用于扩大和缩小检索范围。

  • AND:表示逻辑“与”,检索结果必须与所有单词匹配。例:internet AND education
  • OR:表示逻辑“或”,检索结果只需匹配其中一个单词。例:internet OR intranet
  • AND NOT:表示逻辑“非”,排除包含第二个单词的文章。例:internet AND NOT html
  • WITHIN:两个单词之间最多间隔n个单词,两词顺序不限。例:computer W/3 careers(W/2=WITHIN/2)
  • NOT WITHIN:两个单词之间不少于指定单词数。例:computer NOT W/2 careers
  • PRE:两个单词之间相隔不多于n个单词,并以此顺序显示。例:world pre/3 web
  • WITHIN DOC:查找的单词在索引或文本中匹配。例:internet W/DOC education

2、字段限定检索

  • TI(“Peering into the Future”)   篇名
  • TX(leukemia and gene therapy)  文本全文
  • SUB(“renal dailysis”)  主题词
  • SO(lancet)  期刊
  • CO(African National Congress)  机构名
  • STYPE(periodical)  资源类型……
  • PT(“meeting report”) 文献类型

习惯之后,对这种高级的检索式组配更有意思,有如Scopus的高级检索一样!

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