INFORMATION RESEARCH

Critical Path Identification in Technology Chain by Integrating the U.S. Commerce Control List and Patents: An Example from the EDA Software Field

  • Zhu Yujing ,
  • Chen Fang ,
  • Zhao Ping ,
  • Wang Xuezhao
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  • 1. National Science Library, Chinese Academy of Sciences, Beijing 100190;
    2. Department of Information Resources Management, School of Economics and Management, University of Chinese Academy of Sciences, Beijing 100190

Received date: 2023-04-21

  Revised date: 2023-07-26

  Online published: 2023-11-27

Abstract

[Purpose/Significance] This paper proposes a method of identifying critical paths in patent citation networks by integrating the U.S. Commerce Control List(CCL) in response to the mounting U.S. technology export controls on China with the aim of technological breakthroughs or alternatives. The method has high practical value.[Method/Process] The method combined CCL data into the patent citation network and introduced control weight to measure the degree of technology control, which also using semantic weight to improve the consistency of technology topics in the path combination weight. The method also employed dynamic programming and breadthfirst search network to obtain the path with the maximum combination weight. Then, candidate critical paths were clustered based on the average semantics of all patents on the path, and the path with the maximum combination weight in each cluster was chosen as the representative of the critical path on different technology segments. [Result/Conclusion] The empirical results in the EDA software technology field demonstrate that the method can identify critical paths subject to technology controls in five different technology segments. The importance of control weight in this method has been explained by comparing the results before and after the control weight introduction.

Cite this article

Zhu Yujing , Chen Fang , Zhao Ping , Wang Xuezhao . Critical Path Identification in Technology Chain by Integrating the U.S. Commerce Control List and Patents: An Example from the EDA Software Field[J]. Library and Information Service, 2023 , 67(21) : 89 -99 . DOI: 10.13266/j.issn.0252-3116.2023.21.009

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