“…The emerging bibliometric network analysis often analyzes the relationships among keywords, country, research institute, and author. The common network analysis includes co-word analysis [33][34][35], co-citation analysis [36,37], co-authorship analysis [38][39][40], and co-publication analysis [41]. Many disciplines have used bibliometric methods to explore the impact of research themes, such as natural science, engineering, business, social sciences, and humanities [42][43][44][45][46].…”