释义 |
specificity 专指性,确切性 In library science, (a) the extent to which the system permits precision in specifying the subject of a document to be processed, e.g., the specification of a digital computer has a higher specificity than that of a computer, (b) a measure expressing the ratio of non relevant documents not retrieved to the total number of non relevant documents on file. 在图书馆学中,(1) 指说明文章中某个主题的确切程度。例如,数字计算机的确切性高于计算机,(2) 文卷上未检索的不相关文件与不相关 文件总数之比的一种度量方法。 |