医学主题词表（MeSH）专指度研究

Research on the Specificity of Medical Subject Heading (MeSH)

本文从词表先组度、词量及词量系数、标引及检索四个不同角度探讨厂ＭｅＳＨ表的专指度问题，认为ＭｅＳＨ表的收词量及专指度较为适宜，不失为词表中的典范，只是对于那些覆盖文献量过大的主题词应采取措施进一步细分，以利于标引和检索。

In this paper,the specificity of Medical Subject Heading (MeSH) is approached from the aspects of pre-coordination degree,term quantity and its coefficient,indexing and searching.The authors consider that the covered term quantity and specificity of MeSH are appropriate,but the subject terms that cover too large quantity of documents should be further subdivided for the convenience of indexing and searching.