“…Next, we sized nodes representing author keywords according to their frequency in articles. Using techniques from Visual Network Analysis (Jacomy, 2021) we identified clusters of keywords that often co-appear in the 311 articles, coloring nodes according to a modularity-based classification (Blondel et al, 2008). Finally, we produced the graph in Figure 1 using customized scripts (Jacomy & Thorsen, 2018) for Graph Recipes.…”