科技主路径分析:一种同被引知识流的方法

Scientific and Technological Main Path Analysis:An Approach Based on Co-Cited Knowledge Flow

[研究目的]研究科技主路径对于理清科技发展脉络,探索科技创新趋势具有重要意义。[研究方法]该文提出基于同被引知识流的主路径搜索算法,该方法首先基于同被引强度分析知识流在引文路径上的分配,并计算引文网络路径的知识流权重,然后通过全局搜索算法得到不同时期的技术主路径。通过对有机发光二极管领域的分析证实了该方法的合理性。[研究结论]相比于传统的主路径分析方法,该方法基于引文网络中节点间的关系来衡量链接权重,计量方法更加明确合理,且研究发现,不同时间阶段的主路径具有动态演变的特性。

[Research purpose]It is of great significance to study the scientific and technological main path for clarifying the development of science and technology,and exploring the trend of science and technology innovation.[Research method]In this paper,a main path searching algorithm based on co-citation knowledge flow is proposed.Firstly,the knowledge flow assignment algorithm based on co-citation intensity is used to calculate the knowledge flow weight of the citation network path,and then the Global Search algorithm is used to get the technical main path in different periods.The rationality of this method is confirmed by the analysis of the field of OLED.[Research conclusion]Compared with the traditional method of main path analysis,this method is more explicit and reasonable in measuring link weight based on the actual meaning of node relationship in citation network,and the main path in different periods has the characteristic of dynamic evolution.