LDAShiny: An R Package for Exploratory Review of Scientific Literature Based on a Bayesian Probabilistic Model and Machine Learning Tools

Javier De la Hoz-M, José Fernández-Gómez Mª and Susana Mendes
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Javier De la Hoz-M: Facultad de Ingeniería, Universidad del Magdalena, Santa Marta 470004, Colombia
José Fernández-Gómez Mª: Department of Statistics, University of Salamanca, 37008 Salamanca, Spain
Susana Mendes: MARE, School of Tourism and Maritime Technology, Polytechnic of Leiria, 2520-614 Peniche, Portugal

Mathematics, 2021, vol. 9, issue 14, 1-21

Abstract: In this paper we propose an open source application called LDAShiny, which provides a graphical user interface to perform a review of scientific literature using the latent Dirichlet allocation algorithm and machine learning tools in an interactive and easy-to-use way. The procedures implemented are based on familiar approaches to modeling topics such as preprocessing, modeling, and postprocessing. The tool can be used by researchers or analysts who are not familiar with the R environment. We demonstrated the application by reviewing the literature published in the last three decades on the species Oreochromis niloticus . In total we reviewed 6196 abstracts of articles recorded in Scopus. LDAShiny allowed us to create the matrix of terms and documents. In the preprocessing phase it went from 530,143 unique terms to 3268. Thus, with the implemented options the number of unique terms was reduced, as well as the computational needs. The results showed that 14 topics were sufficient to describe the corpus of the example used in the demonstration. We also found that the general research topics on this species were related to growth performance, body weight, heavy metals, genetics and water quality, among others.

Keywords: text mining; topic modeling; latent dirichlet allocation; automatic literature review (search for similar items in EconPapers)
JEL-codes: C (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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