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2013 >Issue 07: 81 - 88
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
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
Shen Si , Wang Dongbo , Zhang Xiang , Zhang Wenbo . The Research of Recognizing Disciplinary Theme Evolution Based on Temporal Information of Literature ——A Case in the Discipline of Information Science[J]. Library and Information Service, 2013 , (07) : 81 -88 . DOI: 10.7536/j.issn.0252-3116.2013.07.015
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