分类主题词表的计算机自动编制——兼论用于自动分类的知识库的改进

Automatic Establishment of Classified Thesaurus——Also on the Improvement of Knowledge Base for Automatic Classification

认为中文文献数据库中存在大量的分类号与关键词(或主题词)对应的人工标引记录。通过对这些标引记录信息进行聚合处理,可以实现计算机自动编制分类主题词表。比较两种分类主题词表的编制模式,讨论机编分类主题词表的优势,针对机编分类主题词表已有的成果———知识库的不足之处提出改进方案。改进方案在小规模测试集中取得了良好的效果。最后分析将机编分类主题词表技术应用于新一代《中国分类主题词表》升级改造的良好前景。

There are many indexing records which contains the mapping of classification numbers and keywords （or subject terms）.The knowledge base of classified Ihesaurus can be automatically created with the computer-processed indexing records. The authors compare tile compiling patterns of the two elassifiealions thesaurus, discuss the advantages and disadvantages of the current knowledge base, then propose some methods to improve the system performance of the knowledge base. At last ,the authors analvze that applying automatic establishment teehnology would be a good method to upgrading the Chinese Classified Thesaurus.