| 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 |
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| 引用本文： | 顾颖,何琳.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[J].图书情报工作,2012,0(19):109-113. |
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| 作者姓名： | 顾颖 何琳 |
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| 作者单位： | 1. 南京医科大学图书馆 南京 210029;2. 南京农业大学信息科学技术学院 南京 210095 |
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| 摘 要： | 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。
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| 关 键 词： | 《中国分类主题词表》 《中国图书馆分类法》 分类主题词表 计算机辅助编制 知识库 自动分类 |
| 收稿时间： | 2012-05-14 |
Automatic Establishment of Classified Thesaurus——Also on the Improvement of Knowledge Base for Automatic Classification |
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| Gu Ying,He Lin.Automatic Establishment of Classified Thesaurus——Also on the Improvement of Knowledge Base for Automatic Classification[J].Library and Information Service,2012,0(19):109-113. |
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| Authors: | Gu Ying He Lin |
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| Institution: | 1. Nanjing Medical University Library, Nanjing 210029;2. College of Information Science and Technology, Nanjing Agriculture University, Nanjing 210095 |
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| Abstract: | There are many indexing records which contains the mapping of classification numbers and keywords(or subject terms). The knowledge base of classified thesaurus can be automatically created with the computer-processed indexing records. The authors compare the compiling patterns of the two classifications 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 analyze that applying automatic establishment technology would be a good method to upgrading the Chinese Classified Thesaurus. |
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| Keywords: | Chinese Classified Thesaurus Chinese Library Classification classified thesaurus computeraid thesaurus construction knowledge base automatic classification |
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