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Distribution of Literature across Topics
COVID-19 literature is distributed unevenly across the 30 topics identified via LDA. Topics identifiers (IDs) were assigned randomly by LDA. The percentage of abstracts in each of the two groups (orange for COVID-19 abstracts and blue for non-COVID-19 coronavirus abstracts) that are in each topic is represented by the y axis, while each topic ID number is plotted against the x axis.
