摘要
网络环境下 ,信息检索效率主要是指检全率和检准率 ,它们之间存在互逆、互顺等关系。许多因素影响着检索效率 ,文章提出了提高检索效率的各种策略 。
In this essay, the author points out that information retrieval efficiency includes recall ratio and precision ratio; on network; analyses the relation such as direct proportion or inverse proportion between recall ratio and precision ratio; discusses the factors that influence information retrieval efficiency, then suggests the solutions to improve the information retrieval efficiency and conceives future information retrieval efficiency on network.
出处
《四川图书馆学报》
2003年第4期8-10,共3页
Journal of The Library Science Society of Sichuan
关键词
网络环境
信息检索
检全率
检准率
检索效率
影响因素
检索技巧
network information resources
information retrieval
information retrieval efficiency
recall ratio
precision ratio
