Extração de dados e análise de sentimento: com diferentes dicionários léxicos

Abstract

Social networks are becoming more and more a showcase for people's opinions and feelings. Elections around the world were greatly influenced by them, worth noting the impact on the US elections of 2016, when the current president Donald Trump was elected, and on the Brazilian elections of 2018, when the current president Jair Messias Bolsonaro was elected. With the evolution of concepts and tools associated with data processing and storage, large volumes and varieties of data can be analyzed in order to find some value for them. Several areas that use Artificial Intelligence and other strategies are emerging, with the objective of joining the opportunity of great material for analysis and an extensive range of tools for such, such as natural language processing. A specific branch of this area is sentiment analysis, which provides us with part or some consideration of texts. Aiming to know this process and make material available, a sentiment analysis was carried out on the tweets during and after the interview with presidential candidate Luiz Inácio Lula da Silva on CNN Brasil, on September 13, 2022. The analyzes did not generate considerations of great relevance to the fact, but to the understanding of how the area of ​​Sentiment Analysis is complex and has room for improvement.