摘要
通过分析时间因素在间接关联挖掘中的作用,探讨文章发表时间对生物医学文献知识发现的影响。利用来自PubMed的数据集进行测试分析,发现在知识发现过程中近期文献比早期文献获得新关联的效果好,表明时间因素对生物医学文献知识发现具有一定作用,即在间接关联的挖掘过程中考虑时间因素,可以提升生物医学文献知识发现工作的效率。
The effect of paper publication time on knowledge discovery in biomedical literature was studied by analyzing the role of time factor in indirect link mining and tested using the PubMed-covered data set, which showed that recently published papers played a better role than early published papers in knowledge discovery, indicating that the time factor plays a certain role in knowledge discovery in biomedical literature and can thus improve the efficiency of knowledge discovery in biomedical literature.
出处
《中华医学图书情报杂志》
CAS
2017年第5期49-52,共4页
Chinese Journal of Medical Library and Information Science
基金
2015-2016年度中国图书馆学会医院图书馆委员会科研项目"基于时间加权的生物医学文献知识发现研究"(Ytwkyxm15001)
关键词
知识发现
文献挖掘
发表时间
复杂网络
Knowledge discovery
Literature mining
Publication time
Complicated network
