| 基于主路径分析的核心主题凸显及演化 |
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| 引用本文： | 闫肖婷,刘向.基于主路径分析的核心主题凸显及演化[J].现代情报,2019,39(6):24-31. |
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| 作者姓名： | 闫肖婷 刘向 |
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| 作者单位： | 华中师范大学信息管理学院, 湖北 武汉 430079 |
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| 基金项目： | 国家自然科学基金项目"专利引证网络中创新节点的浮现与长期演化研究"（项目编号：71673106）；中央高校基本科研业务费项目"基于专利网络的发明演进路径研究"（项目编号：CCNU19QN025）。 |
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| 摘 要： | 目的/意义]主路径上核心主题的演化可以反映行业发展方向,凸显行业热点技术并预测技术的未来发展,有效判断技术主题间的传承演变关系。方法/过程]本研究构建一种凸显主路径上的核心主题及演化方法。该方法不同于文本挖掘和聚类,是基于引文网络主路径映射专利分类号的链接计数,通过专利的分类号替代技术主题在主路径上演化并计算节点的技术主题含量,以技术主题含量的变化凸显主路径上的核心主题及其发展历程。结果/结论]展示有机发光二极管OLED的主题演化图,证实了该方法的合理性。
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| 关 键 词： | 技术主题演化 主路径分析 主题演化 专利分类号 技术主题含量 |
Research on Core Topics Promminence and Evolution Based on Main Path Analysis |
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| Authors: | Yan Xiaoting Liu Xiang |
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| Institution: | School of Information Management, Central China Normal University, Wuhan 430079, China |
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| Abstract: | Purpose/Significance]The evolution of core topics on the main path can reflect the direction of industry development,highlight industry hotspots and predict the future development of technology,judge the inheritance and evolution relationship between technical topics.Method/Process]The study buildt evolution method that highlighted core themes on main path.The method was different from text mining and clustering methods.It was link count based on main path of citation network mapping patent classification numbers.The technical subject content of the node was evolved and calculated on the main path by replacing the technical subject with the patented classification numbers.Changes in the content of technical topics highlighted the core themes and their development in the main path.Result/Conclusion]The rationality of this method was verified by displaying the thematic evolution diagram of OLED. |
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| Keywords: | technology subject evolution main path analysis subject evolution patent classification numbers technical subject content |
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