Porter R J, Penry J K, Caponio J F
Bull Med Libr Assoc. 1971 Jul;59(3):430-2.
Epilepsy Abstracts, a monthly publication of the National Institute of Neurological Diseases and Stroke, is used as the data base for an on-line full-text search and retrieval system. Every word in the abstract (except common words that possess no retrieval value) becomes a keyword, reducing the mismatch between the user's familiarity with word usage in the desired subject area and the word usage in the documents to be searched.
《癫痫摘要》是美国国立神经疾病与中风研究所的月度出版物，用作在线全文搜索和检索系统的数据库。摘要中的每个单词（除了没有检索价值的常用词）都成为一个关键词，减少了用户对所需主题领域中单词用法的熟悉程度与待搜索文档中单词用法之间的不匹配。
