| 基于DTM的国内外情报学研究主题热度演化对比研究 |
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| 引用本文： | 齐亚双,祝娜,翟羽佳.基于DTM的国内外情报学研究主题热度演化对比研究[J].图书情报工作,2016,60(16):99-109. |
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| 作者姓名： | 齐亚双 祝娜 翟羽佳 |
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| 作者单位： | 南开大学商学院信息资源管理系 天津 300071 |
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| 摘 要： | 目的/意义] 为揭示情报学领域近15年的研究方向和发展演化情况，了解和掌握研究主题热度的动态变化。方法/过程] 基于动态主题模型（Dynamic Topic Model），以国内外情报学领域影响因子较高的6本核心期刊作为数据集，分析国内外情报学研究主题演化过程，从主题热度的宏观维度和词语变化的微观角度入手，对比分析主题的研究内容和研究热度异同点，以期为我国情报学研究提供参考和借鉴。结果/结论] 研究结果表明，国内情报学研究内容偏重实际应用，国外偏重于技术与方法的创新；同一研究主题在不同时期涉及研究内容差别明显，导致其研究热度随着时间推移发生变化；相对于国内，国外情报学研究主题传承性和递进性更强，热度变化较小。
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| 关 键 词： | 动态主题模型 情报学 研究主题 研究热度 演化分析 |
| 收稿时间： | 2016-05-18 |
A Comparative Study on Topic Heats Evolution in the Field of Information Science Between the Domestic and Foreign Research Based on DTM |
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| Qi Yashuang,Zhu Na,Zhai Yujia.A Comparative Study on Topic Heats Evolution in the Field of Information Science Between the Domestic and Foreign Research Based on DTM[J].Library and Information Service,2016,60(16):99-109. |
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| Authors: | Qi Yashuang Zhu Na Zhai Yujia |
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| Institution: | Department of Information Resources Management, Business School, Nankai University, Tianjin 300071 |
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| Abstract: | Purpose/significance] This paper aims at revealing the research direction and development trend of information science in the past 15 years, to understand and master the dynamic changes of topic heats.Method/process] This paper selects articles of six core journals with high impact factor in the field of information science at home and abroad, and analyses the evolution process of research subjects based on the dynamic topic model (DTM). Then it makes a comparative analysis on the similarities and differences of research contents and research heats between domestic and foreign research topics from topic heats' macro perspective and words changes' micro perspective, to provide references for the future study in China.Result/conclusion] The study results show that:the information science research in China emphases on the practical application, while the one in the foreign countries pays more attention to the technology and method innovation; the research heat changes over time as the result of the significantly different research contents of the same topic in different stages; the inheritance and progressive of information science research topics in foreign are stronger than that in China, but heat changes less. |
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| Keywords: | dynamic topic model information science research topic research heat evolution analysis |
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