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| Tech-Development Path of Knife-Scissor Industry in Guangdong with TRIZ Analysis of Patents |
Hu Yongjun1,Wei Tingting2( ),Dou Zixin1,Huang Yunyin3,Liang Ruicheng4,Chang Huiyou3 |
1School of Management, Guangzhou University, Guangzhou 510006, China
2College of Mathematics & Informatics, South China Agricultural University, Guangzhou 510642, China
3School of Data and Compute Science, Sun Yat-Sen University, Guangzhou 510006, China
4Guangzhou Xiaoyun Technology Co., Ltd., Guangzhou 510335, China |
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Abstract [Objective] This paper reveals the evolution of patents from knife-scissor industry in Guangdong Province, China.[Methods] Firstly, we proposed a new classification scheme. Secondly, we created a topic model with TRIZ feature based on LDA. Thirdly, we calculated the first n words with high probability in different years and fields. Finally, we predicted the patent evolution path in the next three years.[Results] The new classification method reduced the noise of manual annotation to less than 10%. We also found that patents from knife-scissors enterprises in Guangdong mainly focused on the TRIZ rules, such as shapes, structures, movement modes, and materials.[Limitations] We only studied the knife-scissors industries.[Conclusions] The proposed method identifies key technical developing trends of knife-scissors industries in Guangdong and gives suggestions on their upgrading in the future.
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Received: 20 June 2019
Published: 26 April 2020
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Corresponding Authors:
Wei Tingting
E-mail: weitingting@scau.edu.cn
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