搜索引擎关键字类别研究

A Study on the Keyword Classifications in Search Engines

与搜索引擎进行对话需要用到关键字,表面上看,人类的自然语言构成了搜索引擎的关键 字。但搜索引擎独特的搜索语法又决定着对自然语言的使用,不能简单复制到利用搜索引擎进行的信息 搜索中。在实际应用中,搜索引擎的关键字主要按语言要素的大小、使用频率、属性特征和搜索的不同 丈件类型进行划分。

It's necessary to utilize keywords in the communication with search engines. Seemingly human natural languages constitute the keywords in search engines, yet never could they be simply copied in the searching process because of the existence of search engine grammar rules. However, keywords of search engines can actually be categorized in terms of such different criteria as the size of language elements, the search frequency of keywords, the characteristics of keywords and the file types.