Research area:

My primary research focus is on Natural Language Processing, with a particular emphasis on Information Extraction. I am currently working on tasks such as Named Entity Recognition and Classification for domain-specific applications (e.g., legal and geological domains) and exploring the capabilities of Large Language Models, including both understanding models (e.g., BERT) and generative models (e.g., GPT, LLama, and T5). I am open to collaborations and discussions on NLP-related research - feel free to reach out!

Publications:

  • PICENI, HENRY R.; ALEXANDRE, PEDRO V.; BALREIRA, DENNIS G. A Música Brasileira na Ditadura Militar: uma análise de tópicos com BERTopic e GSDMM. Simpósio Brasileiro de Tecnologia da Informação e da Linguagem Humana (STIL), 2025. Trabalho em conferência.

  • NUNES, RAFAEL O.; SPRITZER, ANDRÉ S.; FREITAS, CARLA M. D. S.; BALREIRA, DENNIS G. Natural Language Processing in Geology: A Review of Portuguese Language Resources and Techniques. Procesamiento del Lenguaje Natural, v. 74, p. 55–65, 2025. Periódico (completo).

  • NUNES, RAFAEL O.; SPRITZER, ANDRÉ S.; FREITAS, CARLA M. D. S.; BALREIRA, DENNIS G.; CARBONERA, JOEL L.Reconhecimento de Entidades Nomeadas e Vazamento de Dados em Textos Legislativos. Linguamática, v. 16, n. 2, p. 141–166, 2024. Periódico (completo).

  • NUNES, RAFAEL O.; SPRITZER, ANDRÉ S.; BALREIRA, DENNIS G.; FREITAS, CARLA M. D. S.; CARBONERA, JOEL L. An Evaluation of Large Language Models for Geological Named Entity Recognition. The 36th IEEE International Conference on Tools with Artificial Intelligence (ICTAI). 2024. Anais de congressos (completo).

  • NUNES, RAFAEL O.; SPRITZER, ANDRÉ S.; FREITAS, CARLA M. D. S.; BALREIRA, DENNIS G.; TAVARES, ANDERSON R. An Ensemble of LLMs finetuned with LoRA for NER in Portuguese legal documents. The 34th Brazilian Conference on Intelligent Systems (BRACIS). 2024. Anais de congressos (completo).

  • NUNES, RAFAEL O.; SPRITZER, ANDRÉ S.; BALREIRA, DENNIS G.; FREITAS, CARLA M. D. S.; OLIVAL, FELIPE; CAMERON, HELENA F.; VIEIRA, RICARDO. Assessing European and Brazilian Portuguese LLMs for NER in specialised domains. The 34th Brazilian Conference on Intelligent Systems (BRACIS). 2024. Anais de congressos (completo).

  • NUNES, RAFAEL O.; ZANDONÁ, JOÃO G.; MAIA, JÚLIA V.; SPRITZER, ANDRÉ S.; BALREIRA, DENNIS G.; FREITAS, CARLA M. D. S. Ancient Greek's New Technological Muse: Extracting Topoi in the Anacreontea with LLMs. 51º Seminário Integrado de Software e Hardware (SEMISH). 2024. Anais de congressos (completo).

  • BALREIRA, D. G.; SILVEIRA, T. L. T.; Triangular matrix-based lossless compression algorithm for 3D mesh connectivity. The Visual Computer. 2024. Periódico (completo).

  • NUNES, RAFAEL O.; SPRITZER, ANDRÉ S.; FREITAS, CARLA M. D. S.; BALREIRA, DENNIS G. Out of Sesame Street: A Study of Portuguese Legal Named Entity Recognition Through In-Context Learning. International Conference on Enterprise Information Systems (ICEIS). 2024. Anais de congressos (completo).

  • NUNES, RAFAEL O.; BALREIRA, DENNIS G.; SPRITZER, ANDRÉ S.; FREITAS, CARLA M. D. S. A Named Entity Recognition Approach for Portuguese Legislative Texts Using Self-Learning. PROPOR 2024. Anais de congressos (completo).

  • TODESCATO, MATHEUS V.; GARCIA, LUAN F.; BALREIRA, DENNIS G.; CARBONERA, JOEL L. Multiscale patch-based feature graphs for image classification. EXPERT SYSTEMS WITH APPLICATIONS. 2024. Periódico (completo).

  • BALREIRA, DENNIS G.; ARAÚJO, THIAGO S.; PETRILLO, F. Visualizing Kubernetes Distributed Systems: an exploratory study. VISSOFT 2023 - 11th IEEE Working Conference on Software Visualization. Anais de congressos (completo).

  • DE FERREIRA, WESLEY F.; BALREIRA, DENNIS G., MARCONDES, DANILO F.; WALTER, MARCELO. A Template-Based Anthropometric Measurement Approach for 3D Scanned Bodies. In: SIBGRAPI 2023 - Conference on Graphics, Patterns and Images. 2023, Rio Grande. Anais de congressos (completo).

  • CENDRON, NICOLAS E.; BALREIRA, DENNIS G. 3D Model Simplification through Elementary Geometric Structures using Hough Transform. In: SIBGRAPI 2023 - Conference on Graphics, Patterns and Images. 2023, Rio Grande. Workshop of Works in Progress (WiP), 2023. Anais de congressos (resumo).

  • TODESCATO, MATHEUS; GARCIA, LUAN; BALREIRA, DENNIS; CARBONERA, JOEL. Multiscale context features for geological image classification. International Conference on Enterprise Information Systems (ICEIS). 2023. Anais de congressos (completo).

  • BALREIRA, DENNIS G.; SILVEIRA, THIAGO L. T. DA; WICKBOLDT, JULIANO A. Investigating the impact of adopting Python and C languages for introductory engineering programming courses. Computer Applications In Engineering Education, v. 31, p. 47-62, 2023. Periódico (completo).

  • BALREIRA, DENNIS G.; DE FIGUEIREDO, LUIS H.; VOLKWEIS, MÁRCIO; WALTER, MARCELO. A texture-driven model for male baldness. SIBGRAPI 2022.

  • BALREIRA, DENNIS G.; FILHO, DANILO MARCONDES; WALTER, MARCELO. Assessing similarity in handwritten texts. Pattern Recognition Letters, v. 138, p. 447-454, 2020.

  • BALREIRA, DENNIS G.; WALTER, MARCELO; FELLNER, DIETER W. A survey of the contents in introductory Computer Graphics courses. COMPUTERS & GRAPHICS-UK, v. 77, p. 88-96, 2018.

  • BALREIRA, DENNIS G.; WALTER, MARCELO; FELLNER, DIETER W. What we are teaching in Introduction to Computer Graphics. In: The 38th annual conference of the European Association for Computer Graphics, 2017, Lion. Education Papers, 2017.

  • BALREIRA, DENNIS G.; WALTER, MARCELO. Handwriting Synthesis from Public Fonts. In: 2017 30th SIBGRAPI Conference on Graphics, Patterns and Images (SIBGRAPI), 2017, Niteroi. 2017 30th SIBGRAPI Conference on Graphics, Patterns and Images (SIBGRAPI), 2017. p. 246.

  • BALREIRA, DENNIS G.; MACIEL, ANDERSON; WALTER, MARCELO; CAVAZZOLA, LEANDRO T. Cuts in Organs with Internal Structures. In: International Conferences in Central Europe on Computer Graphics, Visualization and Computer Vision (WSCG), 2015, Pilsen. WSCG proceedings, 2015.

  • BALREIRA, DENNIS G.; MACIEL, ANDERSON; WALTER, MARCELO. Visualization System for the Interior of Objects with Internal Structures for Surgery Simulation. In: 28th SIBGRAPI Conference on Graphics, Patterns and Images (SIBGRAPI), 2015, Salvador. Workshop of Thesis and Dissertations (WTD), 2015.

Books:

  • BALREIRA, DENNIS G. Programação Didática com Linguagem C. Paco e Littera, 2022.