[目的/意义]改善现有基于LDA专利技术主题分析维度较为集中、难以动态深层次展示主题结构特征的问题,对于客观合理的追踪技术前沿、提高研发效率具有重要意义.[方法/过程]将战略坐标引入到LDA专利主题分析中,并融合时间要素,通过内、外关联度指标度量主题各部分之间的联系,在挖掘技术主题本身的同时动态研究各时段专利技术主题的结构特征变化和特点,从而识别潜力主题.[结果/结论]融入时间要素和战略坐标的LDA专利技术主题分析方法,既能够深层次探析主题关联,识别有潜在发展的主题,也能从宏观和微观上反映出技术的发展趋势及主题层级的变化特征.%[Purpose/Significance]The more concentrated analysis dimension and difficulty to display the characteristics of the topic structure dynamically and deeply are the problems we have to fix in performing technical topic analysis in patents based on LDA,which is of great significance to track the technological frontier and improve the research and development efficiency objectively and reasonably. [Method/Process]This paper introduces strategic diagram into LDA topic analysis in patents,integrates time elements,and measures the relationship between the various parts of the topic through internal and external indicators of relevance. While mining the topic itself,it al-so dynamically studies the changes and characteristics of structural features of technical topic in patents in each period,thus identifies po-tential topics.[Result/Conclusion]The technical topic analysis in patents based on LDA, which incorporates time elements and strategic diagram,can not only explore topic relation and identify potential development topics deeply, but also reflect the development trend of technology and the change characteristics of the topic hierarchy from macro and micro perspectives.
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