PDF(2136 KB)
Analysis of Directed Technological Cross Impact Based on the Patent Co-classification
Li Ruixi, Chen Xiangdong, Cui Yunxia, Cui Caixia
Knowledge Management Forum ›› 2018, Vol. 3 ›› Issue (3) : 160-171.
PDF(2136 KB)
PDF(2136 KB)
Analysis of Directed Technological Cross Impact Based on the Patent Co-classification
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[Purpose/significance] It is different from the existing research literatures which focus on the technical relationships in specific technical fields, this paper aims at analyzing and predicting the directional cross impacts among various technologies and providing strategic support for the development of target technology and forecasting technological progress. [Method/process] Using the patent co-classification data of 35 technical fields in China, this paper calculated the directed cross impact values between 35 technical areas based on the patent cross impact analysis methods of Choi and others. Then, according to the impact value, the technical pairs were grouped, and cross impact network was built and changes of cross impact was analyzed. [Result/conclusion] There exists a high proportion of bias and one-way technology impact in the whole technology fields. Food chemistry (FOC) is the most influential technical field. Measurement (MEA) in the instrument field, electrical machinery, equipment, energy (EAE) and computer technology (COM) in the electrical engineering field, as well as basic materials chemistry (BMC) and material, metallurgy (MAM) in chemistry field are the core technology fields, locating at the core of the network.
patent co-classification / technical field / directed cross impact
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李瑞茜： 构思论文、查找处理数据并撰写论文；
陈向东： 提出有益的论文修改建议；
崔云霞： 查找专利数据；
崔彩霞： 查找专利数据。
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