A Study on the Development Trends of the Beijing-Tianjin-Hebei Urban Agglomeration : A Topic Modeling Analysis of People's Daily Articles (2014-2024)

This study analyzes 926 articles related to the Beijing-Tianjin-Hebei (Jingjinji) urban agglomeration published in the People's Daily from 2014 to 2024 using topic modeling techniques. By applying the Latent Dirichlet Allocation (LDA) algorithm, six major topics were identified and the results were visualized through topic maps and word clouds. The analysis revealed that the main topics of Jingjinji integrated development are: CPC leadership and national governance, environmental management and disaster response, sports tourism and satellite navigation industry, Xiong'an New Area development and transportation infrastructure, fiscal policy and social security systems, and legal framework and public services. The chronological analysis showed a shift in focus from environmental problem-solving and institutional foundation building in the initial stage (2014-2015), to Xiong'an New Area development and transportation infrastructure in the middle stage (2016-2019), and finally to a comprehensive approach combining physical development with legal and institutional integration in recent years (2023-2024). This transformation demonstrates the policy evolution from ‘problem-solving’ to ‘active construction’ to ‘comprehensive integration.’ By systematically identifying the main agendas and changes in the development of the Jingjinji urban agglomeration through topic modeling, this study contributes to deepening the understanding of China's regional integration strategy.