摘要
分析了影响查新的查全率和查准率的客观和主观因素,从而指出分类途径和主题途径相结合是提高查新的查全率和查准率的有效措施,并用实例加以说明。
By analyzing effective the objective and subjective factors of recall and precision in research topic search, It is concluded that the efficient method to improve both recall and precision is to integrate Classification and Subject and the paper has given examples to demonstrate this fact.
出处
《农业图书情报学刊》
2006年第10期106-107,共2页
Journal of Library and Information Sciences in Agriculture
关键词
科技查新
分类法
主题法
查全率
查准率
search innovation
classification
subject
recall
precision