Dr. Edgar Casasola Murillo

Proyectos

Publicaciones

Analysis of Semantic Shift Before and After COVID-19 in Spanish Diachronic Word Embeddings

Descripción:

Words can shift their meaning across time. This case study shows the results obtained by the exploratory analysis of the semantic shifting on Spanish vocabulary using Diachronic Words Embeddings. Diachronic data consists of a 2018 Spanish corpus, before the COVID-19 outbreak, and a second corpus with documents from 2021. We focused on the semantic shift of three of the topics: COVID-19, masks and vaccines. This paper addresses the construction of the diachronic Spanish word embeddings model, as well as the results obtained by the analysis using a non-supervised distance vector technique. The results allowed to identify shifts related to increase in COVID-19 content.

Tipo de publicación: Conference Paper

Publicado en: 2022 XVLIII Latin American Computer Conference (CLEI)

Social Network Analysis for Automatic Ranking of Political Stakeholders: a Case Study

Descripción:

This article exposes the way in which the creation of a new method for calculating the popularity of stake holders in social networks can support political data analysis experts. The definition of a new formula for estimating popularity allowed us to have a new method that, together with other previously existing ones, allows us to build a multidimensional interpretation of reality. The construction of a method that would seem like a computational scientific curiosity has significant impacts for experts who carry out political analysis. The new ranking algorithm called BOPRank made it possible to identify political actors in a different way than known algorithms. While a wellknown algorithm showed popularity as a result of the work of campaign teams on social networks, the new algorithm reflected popularity obtained as a result of the reaction of the public on social networks.

Tipo de publicación: Conference Paper

Publicado en: 2022 XVLIII Latin American Computer Conference (CLEI)