摘要
本文讨论了网络信息环境下 ,传统的信息检索评价指标体系遇到的困难 ,介绍了两位美国研究人员H .VernonLeighton和JaideepSrivastava提出的“相关性范畴”和“前X命中记录查准率”的概念 ,并对他们查准率计算公式做了一些改进。本文的最后对网络信息检索工具的评价指标做了一些讨论。
This article discussed the difficulties that the traditional information retrieval evaluation measures encountered within the network environment first,then introduced the “relevancy category” and “first X precision” brought forward by two American researcher H.Vernon Leighton and Jaideep Srivastava,and made some improvment on their formula. The last part of the article discussed the new evaluation measures for Internet information retrieval tools.
出处
《情报学报》
CSSCI
北大核心
2001年第4期471-477,共7页
Journal of the China Society for Scientific and Technical Information
