基于知识图谱的高价值专利技术创新演化研究OA北大核心CHSSCDCSSCICSTPCD

[Purpose/Significance]High-value patents are important carriers of scientific and technological innova-tion.Identifying high-value patents and mining technological evolution characteristics from multiple dimensions are of great significance for discovering technological innovation elements and innovation laws.[Method/Process]Taking the patent lit-erature in the field of"brain-computer interface"as an example,this study designed a patent value evaluation indicator system from three aspects of technical value,patent rights and market prospects,and then built a high-value patent knowl-edge graph.On this basis,this study analyzed the evolution of technological innovation from the dimensions of essence,application field,method,etc.[Result/Conclusion]This study finds that the evolution analysis method of high-value pa-tent technology innovation based on knowledge graph has more diverse perspectives and deeper analysis levels,which can provide more specific reference for technology developers,technology policy and strategy makers to implement further inno-vation.