2024-09-202024-09-202024-09-202024-03-19Diniz, Paulo Henrique Barros. 52f. 2024. Análise de sentimentos no comércio online utilizando BERTimbau para o português brasileiro. Monografia (Engenharia de Controle e Automação) - Instituto Federal de Educação, Ciência e Tecnologia do Amazonas, Manaus, 2024.http://repositorio.ifam.edu.br/jspui/handle/4321/1509The digitalage,withitsrisinge-commerce,hastransformedthewayconsumersandbusinesses interact. Whileonlineshoppingoffersconvenienceandspeed,ithasalsocreatedaphysical barrier betweenconsumersandbusinesses.Thishasledtoagrowingneedforeffectivedigital communication methods.Onlinereviewshavebecomeanessentialtoolinthisprocess,acting as afeedbackbridgebetweenconsumersandbusinesses.Theopinionssharedonlinecarry considerable weight,directlyinfluencingthepurchasedecisionsofotherconsumers.Moreover, these commentsprovidevaluableinsightsforbusinessestoimprovetheirproductsandservices. Tomitigatethisdistancing,e-commerceplatformsencouragethesharingofopinionsandfeelings of usersaboutproducts,whichsignificantlyimpactsthepurchasingdecisionsofotherconsumers and providesvaluablefeedbackforbusinesses.Facedwiththevastquantityandvarietyof comments, thechallengeofanalyzingthemefficientlyarises.TheBERTimbaumodelemerges as asolution,offeringautomatedsentimentanalysisinBrazilianPortuguese.Experimental results demonstratetheeffectivenessofthemodel,withaccuraciesrangingbetween75%to88% depending onthecategorizationofsentimentsandtreatmentof3-starreviews.Acesso AbertoBERTimbauProcessamento de linguagem naturalSentimentosOpiniãoProdutosCNPQ::ENGENHARIAS::ENGENHARIA ELETRICA::ELETRONICA INDUSTRIAL, SISTEMAS E CONTROLES ELETRONICOSAnálise de sentimentos no comércio online utilizando bertimbau para o português brasileiroTrabalho de Conclusão de Curso