基于基金项目数据的研究前沿主题探测方法

The Method of Research Front Topic Detection Based on the Fund Project Data

[目的 /意义]根据基金项目数据的特点,提出基于基金项目数据的研究前沿主题探测方法,以期识别出前瞻价值更高的研究前沿,为研究前沿识别相关研究提供借鉴思路。[方法/过程]首先,基于PLDA模型识别蕴含在基金项目文本中的研究主题;然后基于主题-文档矩阵建立主题和基金项目文档的映射关系,在此基础上,利用主题的资助时间、资助金额和中心性指标进行研究前沿主题探测,从而识别出值得关注的研究前沿主题;最后,利用主题演化可视化分析方法,对研究前沿主题进行演化分析,以预测其发展趋势。[结果 /结论]研究结果表明,该方法可以根据基金项目数据的特点识别出蕴含在其中的研究前沿主题,并且能够分析研究前沿主题的分裂、融合等演化过程。

[ Purpose/significance] In this paper, we try to use the fund data to detect the research front topic and forecast its development trend. According to the characteristics of the fund project data, we propose the method of research front topic detection based on the fund project data, in order to identify the research front topic with higher prospective value, providing references for the related research. [ Method/process ] First of all, the research subject contained in the project was identified by using the PLDA model, s Then, based on the mapping document matrix, we built the mapping relation between the theme and fund project documents. We detected the research front topics based on the subsidy time of topics, the amount of subsidies and the center of the index. Finally, using the method of the topic evolution visualization, we analyzed the evolution of research topics to predict the development trend. [ Result/conclusion ] The result shows that, according to the characteristics of the fund project data, the method can identify the research front topic, and analyze the evolution process of the splitting and merging of the research front topic.