A 'shiny' application that guides users through an exploratory
review of scientific literature using Latent Dirichlet Allocation (LDA)
topic modeling. It imports bibliometric records exported from databases
such as 'Scopus' and 'Web of Science', performs text preprocessing,
helps select the number of topics, fits the final model, and visualizes
the results and the evolution of topics over time. The methodology is
described in De la Hoz-M et al. (2021)