The formal analysis of document retrieval systems
作者:
B. M. Ludwig,
H. P. Glockmann,
期刊:
Journal of the American Society for Information Science
(WILEY Available online 1975)
卷期:
Volume 26,
issue 1
页码: 51-55
ISSN:0002-8231
年代: 1975
DOI:10.1002/asi.4630260108
出版商: Wiley Subscription Services, Inc., A Wiley Company
数据来源: WILEY
摘要:
AbstractThe output structure of text retrieval systems resembles formally a description of state that is well known in other fields. Such a (statistical) description allows the derivation of a unique and measurable performance criterion that, in turn, may be used in discussing various parameters of systems performance.The standard quantities “recall” and “precision” appear to be incomplete and dependent measures of system output. The method is illustrated by application to a small test data base and query
点击下载:
PDF
(402KB)
返 回