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SSCI Article

Structural decomposition of technological domain using patent co-classification and classification h
성명 박현석()
소속 공과대학 정보시스템학과
캠퍼스
우수선정주 2019년 11월 2째주
Author Mun, Changbae (Dept Informat Syst); Yoon, Sejun (Dept Informat Syst); 박현석 (Dept Informat Syst) corresponding author;
Corresponding Author Info Park, H (reprint author), Hanyang Univ, Dept Informat Syst, Seoul, South Korea.
E-mail 이메일 아이콘hp@hanyang.ac.kr
Document Type Article
Source SCIENTOMETRICS Volume:121 Issue:2 Pages:633-652 Published:2019
Times Cited 0
External Information http://dx.doi.org/10.1007/s11192-019-03223-8
Abstract This paper proposes a new method for decomposing a technological domain (TD). Specifically, the method identifies sub-TDs at the different levels of technological hierarchy within the TD based on the characteristics of patent co-classification and classification hierarchy. We defined the smallest class, named Minimum Overlapped Class (MOC), constructed by overlaps of sub-group IPC(s) and sub-class UPC(s), and sub-TD is basically identified as a set of the MOCs. In order to cluster the MOCs, technological distances among MOCs are calculated based on patent co-classification and hierarchical structure of patent classification systems. Technologically similar MOCs are grouped by using a hierarchical clustering and the identified clusters at the different level of hierarchy show the hierarchical structure of a TD. Detailed technological content for each sub-TD is represented by extracting representative keywords through a text-mining technique. The method is empirically tested by the solar photovoltaic technology and the results show that the identified sub-TDs are reasonably acceptable by qualitative analysis.
Web of Science Categories Computer Science, Interdisciplinary Applications; Information Science & Library Science
Funding
Language English
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