{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,7,30]],"date-time":"2025-07-30T15:15:20Z","timestamp":1753888520955,"version":"3.41.2"},"reference-count":35,"publisher":"FapUNIFESP (SciELO)","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Gal\u00e1xia (S\u00e3o Paulo)"],"abstract":"<jats:p>RESUMO Este artigo relata uma investiga\u00e7\u00e3o versada na identifica\u00e7\u00e3o de posicionamentos jornal\u00edsticos por meio da utiliza\u00e7\u00e3o de modelos algoritmos embasados no processamento de linguagem natural. Para tanto, um estudo de caso comparativo entre Brasil e Portugal \u00e9 apresentado, com foco na identifica\u00e7\u00e3o e an\u00e1lise de posicionamentos de portais de not\u00edcias digitais em rela\u00e7\u00e3o a quest\u00f5es pol\u00edticas associadas \u00e0s campanhas de vacina\u00e7\u00e3o contra a covid-19 nos anos de 2021 e 2022. S\u00e3o considerados cinco ve\u00edculos jornal\u00edsticos de cada pa\u00eds, com base em crit\u00e9rios de popularidade. O percurso metodol\u00f3gico \u00e9 fundamentado no uso de ferramentas computacionais de produ\u00e7\u00e3o pr\u00f3pria para extra\u00e7\u00e3o de dados e an\u00e1lise, sobretudo no \u00e2mbito de processamento de linguagem natural (PLN), a fim de rotular os textos conforme os posicionamentos expressos (an\u00e1lise de sentimentos). Os resultados revelam uma majora\u00e7\u00e3o ao negativo por parte dos jornais brasileiros e um cen\u00e1rio de equil\u00edbrio no debate delineado nos jornais portugueses.<\/jats:p>","DOI":"10.1590\/1982-2553202566769","type":"journal-article","created":{"date-parts":[[2025,6,16]],"date-time":"2025-06-16T12:01:33Z","timestamp":1750075293000},"source":"Crossref","is-referenced-by-count":0,"title":["Estudo comparativo Brasil-Portugal de posicionamentos jornal\u00edsticos sobre a vacina\u00e7\u00e3o contra a covid-19 usando processamento de linguagem natural"],"prefix":"10.1590","volume":"50","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5187-0036","authenticated-orcid":false,"given":"DOUGLAS FARIAS","family":"CORDEIRO","sequence":"first","affiliation":[{"name":"Universidade Federal de Goi\u00e1s,  Brasil"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0814-6779","authenticated-orcid":false,"given":"JORGE PEDRO","family":"SOUSA","sequence":"additional","affiliation":[{"name":"Universidade Fernando Pessoa,  Portugal"}]}],"member":"530","published-online":{"date-parts":[[2025]]},"reference":[{"year":"2022","series-title":"Ag\u00eancia Brasil","key":"ref1"},{"issue":"4","key":"ref2","first-page":"11","article-title":"O papel da imprensa no debate p\u00fablico: impasses contempor\u00e2neos","volume":"20","author":"ALBUQUERQUE Afonso","year":"2019","journal-title":"Cadernos Adenauer"},{"year":"2018","series-title":"LeIA - 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