Abstract

POLO BAUTISTA, Luis Roberto  and  MARTINEZ ACEVEDO, Karen Vanessa. Algorithm for thematic analysis of digital documents. Investig. bibl [online]. 2021, vol.35, n.89, eib0895841901.  Epub Mar 22, 2022. ISSN 2448-8321.  https://doi.org/10.22201/iibi.24488321xe.2021.89.58419.

The objective of the article is to present an algorithm for assigning subject areas to digital documents which serve as a support tool for thematic analysis within the organization of information, in order to be implemented in development of controlled vocabularies. The methodology used consisted in applying Optical Character Recognition (OCR) and Latent Dirichlet Allocation (LDA) as main tools for developing an algorithm based on Python programming language,which allows reading of files with a PDF extension in order to obtain the main themes of textual corpus. Results of the algorithm’s application demonstrate its usefulness in the area of indexing as a system for identifying and extracting relevant topics from a specific document in electronic format, and allow automation of processes by the information professional. This way, its use as a development of alternative points of access based on the content of texts is concluded.

Keywords : Latent Dirichlet Allocation; Algorithms; Thematic Analysis; Digital Documents.

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