基于文献时间特征的学科主题演化分析方法研究 ——以图书情报学领域为例
收稿日期: 2012-09-18
修回日期: 2013-03-19
网络出版日期: 2013-04-05
基金资助
本文系江苏省2012年度普通高校研究生科研创新计划项目"基于异构社会网络数据的信息集成与检索研究"(项目编号:CXZZ12_0073)和国家社会科学基金项目"基于语言特征的中文意见挖掘研究"(项目编号:11CYY031)研究成果之一。
The Research of Recognizing Disciplinary Theme Evolution Based on Temporal Information of Literature ——A Case in the Discipline of Information Science
Received date: 2012-09-18
Revised date: 2013-03-19
Online published: 2013-04-05
沈思 , 王东波 , 张祥 , 张文博 . 基于文献时间特征的学科主题演化分析方法研究 ——以图书情报学领域为例[J]. 图书情报工作, 2013 , (07) : 81 -88 . DOI: 10.7536/j.issn.0252-3116.2013.07.015
After analyzing the temporal characteristics of literature in different themes evolution periods, this paper raises a method for identifying research period of a theme based on topic model. It emphasizes the construct process of the method, including temporal expression extraction, research period identification and hot and cold topic description. It tests the effectiveness of this method by comparing the word frequency method and topic model method for research evolution analysis. Experiment results show that the proposed method is an effective solution to depict the implied research period of a theme while describing the hotspot and research tendency.
Key words: topic; model; temporal; information; of; literature; theme; evolution; analysis; temporal
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