主题演化时间序列中的关键时间点分析

Insightful Time Point Identification Based on Time Series Analysis of Theme Evolution

主题演化分析在捕捉最新的学术热点和发现重要的科研成果中起着重要作用。文章借鉴信息检索领域中的时间检索方法,提出一种主题演化中关键时间点计算的方法。基于情报学期刊的实验结果表明,该方法可有效地找出某一研究分支中相关主题演化的重要时间段,为从时间角度研究学科演化提供了一种新的方法和思路。

Theme evolution analysis plays an important role in capturing the latest disciplinary hotspot and in finding the significant scientific research achievements. By reference to the temporal information retrieval method in the information retrieval field, this paper proposes a method of calculating the insightful time point in theme evolution. The experimental results based on the jour- nals of information science prove that this method can effectively find the important time period of relevant theme evolution in certain research branch, and provide a new way and idea for studying the disciplinary evolution from the temporal perspective.