{"id":53,"date":"2021-03-18T09:48:25","date_gmt":"2021-03-18T12:48:25","guid":{"rendered":"https:\/\/wp.ufpel.edu.br\/gaspln\/?page_id=53"},"modified":"2026-05-07T15:14:00","modified_gmt":"2026-05-07T18:14:00","slug":"publicacoes","status":"publish","type":"page","link":"https:\/\/wp.ufpel.edu.br\/gaspln\/publicacoes\/","title":{"rendered":"Publica\u00e7\u00f5es"},"content":{"rendered":"

2026<\/h1>\n

CUNHA, M. V.; SILVEIRA, M.; SPERB, C. B.; FREITAS, L. A.; CORR\u00caA, U. B.<\/span>. A RAG Chatbot with Incremental Context Retrieval based on Local LLMs for Hospital Documents Autores In: PROPOR, 2026.<\/p>\n

<\/i>PEREIRA, F. N.; FREITAS, L. A.; CORR\u00caA, U. B.<\/span>. An\u00e1lise de Sentimento Baseada em Aspectos no Dom\u00ednio de Acomoda\u00e7\u00f5es Utilizando o modelo BERTimbau In: PROPOR, 2026.<\/p>\n

<\/i>CUNHA, M. V.; SILVEIRA, M.; SPERB, C. B.; FREITAS, L. A.; CORR\u00caA, U. B.<\/span>. Avalia\u00e7\u00e3o End-to-End de um Sistema RAG para Documentos Hospitalares em Portugu\u00eas In: PROPOR, 2026.<\/p>\n

<\/i>PORTO, T.; GOMES, G.; BENDER, A.; CORR\u00caA, U. B.<\/span>; FREITAS, L. A.; CRUZ, W.; AMADEUS, M.. JabuticaBERT: Modern Portuguese Encoders from Scratch with RTD and Long-Context Training In: PROPOR, 2026.<\/p>\n

<\/i>JUNQUEIRA, J. R.; FREITAS, L. A.; CORR\u00caA, U. B.<\/span>. LARI Dataset: A Native Portuguese Question Answering Dataset from Brasileiras em PLN In: PROPOR, 2026.<\/p>\n

CAMPOS, A. B.; CORR\u00caA, U. B.<\/span>; FREITAS, L. A.. Structured Sentiment Analysis in Brazilian Portuguese: An Exploratory Study Using BERTimbau In: PROPOR, 2026.<\/i><\/p>\n

2025<\/strong><\/h1>\n

LOPES, E. P.; GOMES, G.; BENDER, A. T.; ARA\u00daJO, R. M.; FREITAS, L. A.; CORREA, U.. Overview of ASQP-PT at IberLEF 2025<\/span>: <\/span>Overview of ABSAPT at IberLEF 2025: Overview of the Task on Aspect-Sentiment Quadruple Prediction in Portuguese. Procesamiento del Lenguaje Natural, v. 75, p. 385-391, 2025.<\/p>\n

PARAFINO, C.; SANTANA, B. S.; TOMASZEWSKI, J. P.; FREITAS, L. A. . Discursos de \u00d3dio e Not\u00edcias Falsas: Estudo preliminar da coocorr\u00eancia entre esses fen\u00f4menos em textos em portugu\u00eas. In: ERAMIA, 2025.<\/p>\n

JUNQUEIRA, J. R.; FREITAS, L. A; CORREA, U.; MOREIRA, V. . Modelos Quantizados para Question Answering em Portugu\u00eas Brasileiro: Um Estudo Experimental com Retrieval-Augmented Generation. In: ERAMIA, 2025.<\/p>\n

EHLERT, A.; FREITAS, L. A; CORREA, U.. Tucano em Question Answering: Explora\u00e7\u00e3o das capacidades do modelo no dataset FairytaleQA. In: ERAMIA, 2025.<\/p>\n

CUNHA, M.V.; SILVEIRA, M. R.; CORR\u00caA, U. B.; FREITAS, A. L.; SANTANA, B. S.. Optimizing and Evaluating a Retrieval-Augmented Generation System for Normative Document Retrieval in Hospital Settings. In: WEBMEDIA, 2025.<\/p>\n

SILVEIRA, M. R.; LIMA, G. D.; J\u00daNIOR,\u00a0 C. A. C. S.;\u00a0 \u00a0FREITAS, A. L.; CORR\u00caA, U. B.. Small vs. Large Language Models: A Comparative Study on Multiple-Choice Question Answering in Portuguese. In:\u00a0<\/span>WEBMEDIA, 2025.<\/p>\n

JUNQUEIRA, J. R.; LOPES, E. P.; FREITAS, L. A; CORREA, U.. \u00a0Aya in Action: An Investigation of its Abilites in Aspect-Based Sentiment Analysis, Hate Speech Detection, Irony Detection and Question-Answering. In: AMCIS, 2025.<\/p>\n

LIMA, G. D.; LOPES, E. P.; PEREIRA, H.; SILVEIRA, M.; FREITAS, L. A; CORREA, U.. Generative Models for Multiple-Choice Question Answering in Portuguese: A Monolingual and Multilingual Experimental Study. In: FLAIRS, 2025.<\/p>\n

EHLERT, A.; JUNQUEIRA, J. R.; FREITAS, L. A; CORREA, U.. A Review of Recent Advances on Automatic Question Generation for the Portuguese Language. In: FLAIRS, 2025.<\/p>\n

2024<\/strong><\/h1>\n

BENDER, A. T.; GOMES, G.; LOPES, E.; ARA\u00daJO, R. M.; FREITAS, L. A.; CORREA, U.. Overview of ABSAPT at IberLEF 2024: Overview of the Task on Aspect-Based Sentiment Analysis in Portuguese. Procesamiento del Lenguaje Natural, v. 73, p. 315-322, 2024.<\/p>\n

LIMA, G. D.; OLIVEIRA, A.; SILVA, F. L. V.; PINHEIRO, L. M.; LUZ, E.J.S.; FREITAS, L. A.. Desafios sobre a Detec\u00e7\u00e3o de Discurso de \u00d3dio em Portugu\u00eas Brasileiro: Constru\u00e7\u00e3o de um Novo Corpus e Reflex\u00f5es sobre o Processo. In: AMCIS, 2024.<\/p>\n

JUNQUEIRA, J. R.; LOPES, E. P.; FREITAS, L. A; CORREA, U.. A Systematic Analysis of Multilingual and Low-Resource Languages Models: A Review on Brazilian Portuguese. In: AMCIS, 2024.<\/p>\n

JUNQUEIRA, J. R.; LOPES, E. P.; JUNIOR, C. L.; SILVA, F. L. V.; CARVALHO, E. A.; FREITAS, L. A; CORREA, U.. Sabi\u00e1 in Action: An Investigation of Its Abilities in Aspect-Based Sentiment Analysis, Hate Speech Detection, Irony Detection, and Question-Answering. In: IJCNN, 2024.<\/p>\n

JUNQUEIRA, J. R.; CORREA, U.; FREITAS, L. A.. Transformer Models for Brazilian Portuguese Question Generation: An Experimental Study. In: FLAIRS, 2024.<\/p>\n

SILVA, F.\u00a0 L. V.; CORREA, U. B.; FREITAS, L. A.. The Impact of Data Augmentation on the Hate Speech Detection in Portuguese Language. In: FLAIRS, 2024.<\/p>\n

GOMES, G.; BENDER, A. T.; CERVEIRA, A.; FREITAS, L. A.; CORREA, U. B.. Graph Attention Networks for ABSA in Brazilian Portuguese. In: FLAIRS, 2024.<\/p>\n

2023<\/strong><\/h1>\n

BRUGNAROTO, M.; CORREA, U. B.; FREITAS, L. A. An\u00e1lise dos resultados do modelo BERTimbau ajustado para a tarefa de reconhecimento de entidades nomeadas. CONTRIBUCIONES A LAS CIENCIAS SOCIALES 16 (12), 30836-30863.<\/p>\n

SIILVEIRA, W. C; CORREA, U. B.; FREITAS, L. A. Expans\u00e3o de um framework de an\u00e1lise de sentimento em portugu\u00eas utilizando t\u00e9cnicas de aprendizado profundo. CONTRIBUCIONES A LAS CIENCIAS SOCIALES 16 (11), 27124-27136.<\/p>\n

SANTANA, B. S.; FREITAS, L. A.. Processamento de Linguagem Natural: Conceitos, T\u00e9cnicas e Aplica\u00e7\u00f5es em Portugu\u00eas. Cap\u00edtulo 23 – PLN em Redes Sociais. In: ONLINE, 2023.<\/p>\n

JUNQUEIRA, J. R.; JUNIOR, C. L.; SILVA, F. L. V.; CORREA, U.; FREITAS, L. A. Albertina in Action: An Investigation of its Abilities in Aspect Extraction, Hate Speech Detection, Irony Detection, and Question-Answering. In: STIL, 2023.<\/p>\n

JUNQUEIRA, J. R.; SILVA, F. L. V.;\u00a0 COSTA, W.; CARVALHO R.; BENDER, A.; CORREA, U.; FREITAS, L. A. BERTimbau in Action: An Investigation of its Abilities in Sentiment Analysis, Aspect Extraction, Hate Speech Detection, and Irony Detection. In: FLAIRS, 2023.<\/p>\n

GOMES, G.; CORREA, U. B.; FREITAS, L. A. GABSA-PT: Graph Neural Networks for Aspect-level Sentiment Analysis in Portuguese Language. In: FLAIRS, 2023.<\/p>\n

2022<\/strong><\/h1>\n

SILVA, F.\u00a0 L. V.; XAVIER, G. S.; MENSENBURG, H. M.; RODRIGUES, R. F.; SANTOS, L. P.; ARA\u00daJO, R. M.; CORREA, U. B.; FREITAS, L. A.. ABSAPT 2022 at IberLEF: Overview of the Task on Aspect-Based Sentiment Analysis in Portuguese. PROCESAMIENTO DEL LENGUAJE NATURAL, vol 69, p. 1-7, 2022.<\/p>\n

LOPES, E. P.; HAMMES, L. O. A.; GOMES, G.; LEMOS, G.; CORREA, U. B.; FREITAS, L. A. Exploring BERT for Aspect-based Sentiment Analysis in Portuguese Language. In: FLAIRS, 2022.<\/p>\n

SILVA, F. L. V.; FREITAS, L. A. Brazilian Portuguese Hate Speech Classification using BERTimbau. In: FLAIRS, 2022.<\/p>\n

2021<\/strong><\/h1>\n

HAMMES, L. O. A.; FREITAS, L. A. Utilizando BERTimbau para a Classifica\u00e7\u00e3o de Emo\u00e7\u00f5es em Portugu\u00eas. In: STIL, 2021.<\/p>\n

RODRIGUES, R. F.; FREITAS, L. A. Utilizando Pistas Lingu\u00edsticas para Detectar Not\u00edcias Falsas em Portugu\u00eas. In: TILIC, 2021.<\/p>\n

COELHO, L.; FREITAS, L. A. Corpora do Calend\u00e1rio de Sa\u00fade. In: OPENCOR, 2021.<\/p>\n

SANTOS, M. K.; FREITAS, L. A. Enriquecimento Semi-Autom\u00e1tico de uma Ontologia de Dom\u00ednio em Portugu\u00eas Utilizando Redes Neurais Recorrentes. In: ONTOBRAS, 2021.<\/p>\n

CORREA, U. B., SANTOS, L. P., COELHO, L., FREITAS, L. A. . IDPT2021 at IberLEF: Overview of the task on Irony Detection in Portuguese. PROCESAMIENTO DEL LENGUAJE NATURAL, vol 67, p. 1-8, 2021.<\/p>\n

ALVES, B. ; AGUIAR, M. S. ; FREITAS, L. A. . Chatbot as support to decision-making in the context of natural resource management. In: WCAMA, 2021.<\/p>\n

CARDOZO, L. S. ; FREITAS, L. A. . An\u00e1lise de Sentimentos: Avaliando o Desempenho de Pr\u00e9-Processamento e de Algoritmos de Aprendizagem de M\u00e1quina sobre o Dataset TweetSentBR. In: BRASNAM, 2021.<\/p>\n

SCHUBERT, G. ; FREITAS, L. A. . The Construction of a Corpus for Detecting Irony and Sarcasm in Portuguese. BRAZILIAN JOURNAL OF DEVELOPMENT, v. 7, p. 1-10, 2021.<\/p>\n

LOPES, E. P. ; CORREA, U. B.; FREITAS, L. A. . Exploring BERT for Aspect Extraction in Portuguese Language. In: FLAIRS, 2021.<\/p>\n

STANIECKI, G. S. ; PRIMO, T.; FREITAS, L. A. . Acentua F\u00e1cil: A system to support Brazilian Portuguese Accentuation. In: WAVE, 2021.<\/p>\n

2020<\/strong><\/h1>\n

DEON, D. J.\u00a0;\u00a0SANTOS, L. P.\u00a0;\u00a0FREITAS, L. A.\u00a0. Padr\u00f5es lingu\u00edsticos para detec\u00e7\u00e3o de ironia em m\u00faltiplos idiomas. REVISTA ELETR\u00d4NICA DE INICIA\u00c7\u00c3O CIENT\u00cdFICA, v. 18, p. 1-9, 2020.<\/p>\n

SCHUBERT, G. ; FREITAS, L. A. . The Construction of a Corpus for Detecting Irony and Sarcasm in Portuguese. In: Encontro Nacional de Intelig\u00eancia Artificial e Computacional, 2020, Rio Grande. Anais do XVII Encontro Nacional de Intelig\u00eancia Artificial e Computacional, 2020. p. 709-717.<\/p>\n

2019<\/strong><\/h1>\n

DEON, D. J. ; FREITAS, L. A. . UFPelRules to Irony Detection in Spanish Variants. In: Iberian Languages Evaluation Forum, 2019, Bilbao. IroSvA: Irony Detection in Spanish Variants, 2019. p. 1-55.<\/p>\n

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2026 CUNHA, M. V.; SILVEIRA, M.; SPERB, C. B.; FREITAS, L. A.; CORR\u00caA, U. B.. A RAG Chatbot with Incremental Context Retrieval based on Local LLMs for Hospital Documents Autores In: PROPOR, 2026. PEREIRA, F. N.; FREITAS, L. A.; CORR\u00caA, … Continue lendo →<\/span><\/a><\/p>\n","protected":false},"author":825,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-53","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/wp.ufpel.edu.br\/gaspln\/wp-json\/wp\/v2\/pages\/53","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wp.ufpel.edu.br\/gaspln\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/wp.ufpel.edu.br\/gaspln\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/wp.ufpel.edu.br\/gaspln\/wp-json\/wp\/v2\/users\/825"}],"replies":[{"embeddable":true,"href":"https:\/\/wp.ufpel.edu.br\/gaspln\/wp-json\/wp\/v2\/comments?post=53"}],"version-history":[{"count":3,"href":"https:\/\/wp.ufpel.edu.br\/gaspln\/wp-json\/wp\/v2\/pages\/53\/revisions"}],"predecessor-version":[{"id":195,"href":"https:\/\/wp.ufpel.edu.br\/gaspln\/wp-json\/wp\/v2\/pages\/53\/revisions\/195"}],"wp:attachment":[{"href":"https:\/\/wp.ufpel.edu.br\/gaspln\/wp-json\/wp\/v2\/media?parent=53"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}