| Science and technology innovation is a powerful driving force to achieve highquality development.As an important scientific basic research facility,Large Research Infrastructures are of great strategic significance for China to achieve scientific and technological self-sufficiency and high-quality economic development.In recent years,under the leadership of the Party Central Committee,China’s Large Research Infrastructures have ushered in a historic period of rapid development.At the same time,due to the increasingly comprehensive,complex and interdisciplinary nature of scientific research,international scientific collaboration has become the main scientific production method for conducting research on large scientific projects.The study of the scientific research collaboration characteristics of China’s Large Research Infrastructures is conducive to locating collaboration issues and giving full play to the important role of Large Research Infrastructures as international collaboration platforms.This paper selects two representative Large Research Infrastructures in astronomy from China and the United States-Large Sky Area Multi-Object Fiber Spectroscopy Telescope(LAMOST)and Sloan Digital Sky Survey(SDSS),constructs a measurement index model for Large Research Infrastructure research collaboration characteristics,and uses social network analysis method to quantitatively compare the differences between the two facilities in research collaboration characteristics from national collaboration and institutional collaboration perspectives.On this basis,relying on panel data of collaboration indicators of research institutions,a panel regression model is constructed to explore the relationship between paper influence and collaboration characteristics of Large Research Infrastructures.The research results show that the publications of both Large Research Infrastructures are concentrated in the fields of astronomy and astrophysics,with less interdisciplinary collaborations.The core country of LAMOST publications is China,and institutions with similar geographical locations are more likely to collaborate;the core country of SDSS publications is the United States,and institutions with the same or similar research directions are more likely to collaborate.At the level of national collaboration,the degree and scale of collaboration of LAMOST is less than that of SDSS,and the density of the collaboration network is lower,and the nodes tend to form small groups,which is not conducive to the development of collaboration.At the institutional level,the difference between LAMOST and SDSS is not significant,but the collaboration scale of LAMOST is much smaller than that of SDSS,and the stability of LAMOST’s collaboration network is also less than that of SDSS.Further research found that the reason for the difference in collaboration characteristics is mainly due to the differences in the allocation of research resources,operation and management mode and funding sources of the two Large Research Infrastructures.In addition,the science and technology policies as well as the language and cultural backgrounds of the two countries also have a certain degree of influence on the development of the collaborations.The empirical results of the panel regression analysis of the paper influence and collaboration characteristics of the Large Research Infrastructures show that the development of transnational collaboration,expansion of collaboration scale and enhancement of collaboration diversity help to improve the influence of the papers.Based on this,measures such as optimizing the structure of collaboration networks,improving the allocation of device resources,promoting the sharing of scientific research results,and enhancing the construction of talent teams are proposed so as to continuously improve the scientific research collaboration process of Large Research Infrastructures in China. |