Identification and Analysis of Technique-Themed Evolution Paths of Strategic Emerging Industries

Han Guoyong; Gao Yang; Wu Jinxin; Yan Wanxuan; Wu Yixuan

doi:10.3969/j.issn.1004-3403.2026.01.011

Abstract：Objective This paper aims to construct an identification method for the technique themes in the solar energy industry and deeply explore their evolution paths,addressing challenges such as unclear themes and ambigu-ous development paths in the process of technique development,which helps provide reference for policymakers,ad-ministrative departments and practitioners in this field.Methods Taking technical papers in the solar energy industry as the research object,an analytical framework of"paper vectorization-stage clustering-global vector-global sim-ilarity calculation"is designed.A model integrating"Word2Vec+TF-IDF+K-means"has been innovatively con-structed for feature vector generation,theme clustering and theme identification.The evolution paths of solar energy industry techniques have been identified through similarity calculation.Results The research finds that the"Word2Vec+TF-IDF+K-means"model can more accurately depict technical papers and identify technical themes.The results show that solar energy techniques have shifted from"single device innovation"to"intelligent system synergy".Photovoltaic materials have been upgraded and replaced from crystalline silicon to thin films and perovskite.The photovoltaic grid system has formed development paths of"supplementary power source-main power source","unidirectional flow-multi-directional interaction"and"passive adaptation to the grid-active sup-port for the grid",presenting a composite pattern of"multi-dimensional gradient technical evolution+networked and intelligent synergy"overall.Approach Future research would utilize models based on semantic relations such as BERT and STM to conduct in-depth analysis on papers and patents relatd to solar energy techniques,and explore their evolution characteristics and development trend.