Lucas Silveira Kupssinskü, Associate Professor at PUCRS

Lucas Silveira Kupssinskü

Associate Professor · Deep Learning Researcher Professor Adjunto · Pesquisador em Aprendizado Profundo

School of Technology · Pontifical Catholic University of Rio Grande do Sul (PUCRS) · Porto Alegre, Brazil Escola Politécnica · Pontifícia Universidade Católica do Rio Grande do Sul (PUCRS) · Porto Alegre, Brasil

I am an Associate Professor and researcher at the Graduate Program in Computer Science at PUCRS, where I co-lead the Machine Learning Theory and Applications Research Group (MALTA). I hold a Ph.D. in Applied Computing from Unisinos. My research focuses on machine learning and deep learning, with applications in fairness, health, generative models, LLMs, and Machine Unlearning, supported by institutions such as Petrobras, Motorola, Michael J. Fox Foundation, and Kunumi. Sou Professor Adjunto e pesquisador no Programa de Pós-Graduação em Ciência da Computação da PUCRS, onde coordeno, em conjunto, o Grupo de Pesquisa em Teoria e Aplicações de Aprendizado de Máquina (MALTA). Tenho doutorado em Computação Aplicada pela Unisinos. Minha pesquisa concentra-se em aprendizado de máquina e aprendizado profundo, com aplicações em fairness, saúde, modelos geradores, LLMs e Machine Unlearning, com apoio de instituições como Petrobras, Motorola, Michael J. Fox Foundation e Kunumi.

Before academia, I spent ten years in industry as a developer and systems analyst, and I have taught at every level, from teenagers in a technical course to digital inclusion programs for elderly people. I moved to research and teaching full-time because it is where I believe I can create the most positive impact on society. Antes da academia, passei dez anos na indústria como desenvolvedor e analista de sistemas, e já ensinei em todos os níveis, de adolescentes em um curso técnico a programas de inclusão digital para idosos. Migrei para a pesquisa e o ensino em dedicação integral porque é onde acredito poder gerar o maior impacto positivo na sociedade.

News Notícias

Aug 2026ago. de 2026

My undergraduate advisees Yasmin Aguirre and João Pedro Druschel Martins were highlighted as the best undergraduate research at the 27th Salão de Iniciação Científica da PUCRS. Congratulations!Meus orientandos de iniciação científica Yasmin Aguirre e João Pedro Druschel Martins foram destacados como as melhores pesquisas de graduação no 27º Salão de Iniciação Científica da PUCRS. Parabéns!

Jun 2026jun. de 2026

Six papers from our research group accepted at BRACIS 2026. See you in Cuiabá!Seis artigos do nosso grupo de pesquisa aceitos na BRACIS 2026. Nos vemos em Cuiabá!

Mar 2026mar. de 2026

Marco Bochernitsan, Jerusa Finatto, and Vitor Hugo Garcez defended their M.Sc. theses. Vitor stays in the group as a Ph.D. student.Marco Bochernitsan, Jerusa Finatto e Vitor Hugo Garcez defenderam suas dissertações de mestrado. Vitor continua no grupo como doutorando.

Oct 2025out. de 2025

Two papers at BRACIS 2025: Evaluating Odor Selectivity in α-Synucleinopathy and Inference Time Debiasing Concepts in Diffusion Models.Dois artigos na BRACIS 2025: Evaluating Odor Selectivity in α-Synucleinopathy e Inference Time Debiasing Concepts in Diffusion Models.

Research Interests Interesses de Pesquisa

Machine LearningAprendizado de Máquina Deep LearningAprendizado Profundo Computer VisionVisão Computacional Natural Language ProcessingProcessamento de Linguagem Natural UnlearningDesaprendizado de Máquina Long Context LLMsLLMs de Contexto Longo

Projects Projetos

ActiveEm andamento2026 – 2028

Low Resource ML

Funded by Kunumi · PUCRSFinanciado pela Kunumi · PUCRS

Low computational cost machine learning techniques for Large Language Models: inference-time model editing, machine unlearning, and context window extrapolation.Técnicas de aprendizado de máquina de baixo custo computacional para Modelos de Linguagem de Grande Escala: edição de modelos em tempo de inferência, desaprendizado de máquina e extrapolação de janelas de contexto.

LLMsModel EditingMachine UnlearningLong Context
View details →Ver detalhes →
ActiveEm andamento2025 – 2027

Misinformation Identification with LLMs

Funded by FAPERGS · CNPq · PUCRSFinanciado pela FAPERGS · CNPq · PUCRS

Automatic identification of health misinformation in Portuguese, combining an LLM fine-tuned for the health domain with Retrieval-Augmented Generation (RAG) over trusted sources to reduce hallucinations.Identificação automática de desinformação em saúde no idioma português, combinando um LLM ajustado para o domínio da saúde com Retrieval-Augmented Generation (RAG) sobre fontes confiáveis para reduzir alucinações.

LLMsRAGHealthMisinformationPortuguese
View details →Ver detalhes →

Partnerships Parcerias

I work with companies, foundations, and funding agencies on both applied and pure machine learning research. A partnership can take the form of a contracted R&D project, a jointly supervised research line, consulting, or training for industry teams. Recent and current collaborations include Petrobras, Motorola, the Michael J. Fox Foundation, Kunumi, FAPERGS, and CNPq, on topics ranging from geoscience and health to efficient LLMs. Trabalho com empresas, fundações e agências de fomento em pesquisa de aprendizado de máquina, tanto aplicada quanto pura. Uma parceria pode tomar a forma de um projeto de P&D contratado, uma linha de pesquisa orientada em conjunto, consultorias ou treinamentos para equipes da indústria. Colaborações recentes e atuais incluem Petrobras, Motorola, Michael J. Fox Foundation, Kunumi, FAPERGS e CNPq, em temas que vão de geociências e saúde a LLMs eficientes.

Interested in a collaboration? Write a short note about your problem and we will get back to you. Interessado em uma colaboração? Escreva uma breve mensagem sobre o seu problema e retornaremos o contato.

Get in touch → Entre em contato →

Publications Publicações

Also available on Google Scholar. Também disponível no Google Scholar.

Inference-Time Machine Unlearning via Gated Activation Redirection

Vinícius Conte Turani, Otávio Parraga, João Vitor Boer Abitante, Kristen K. Arguello, Joana Pasquali, Ramiro N. Barros, Flavio du Pin Calmon, Christian Mattjie, Rodrigo C. Barros, Lucas S. Kupssinskü

arXiv preprint arXiv:2605.12765 2026 PreprintPreprint

Low-Rank Adapters Initialization via Gradient Surgery for Continual Learning

Joana Pasquali, Ramiro N. Barros, Arthur S. Bianchessi, Vinícius Conte Turani, João Vitor Boer Abitante, Rafaela Cappelari Ravazio, Christian Mattjie, Otávio Parraga, Lucas S. Kupssinskü, Rodrigo C. Barros

arXiv preprint arXiv:2605.12752 2026 PreprintPreprint

Bayesian Attention Mechanism: A Probabilistic Framework for Positional Encoding and Context Length Extrapolation

Arthur S. Bianchessi, Yasmin C. Aguirre, Rodrigo C. Barros, Lucas S. Kupssinskü

International Conference on Learning Representations (ICLR) 2026 ConferenceConferência

Fairness in deep learning: A survey on vision and language research

Otavio Parraga, Martin D. More, Christian M. Oliveira, Nathan S. Gavenski, Lucas S. Kupssinskü, Adilson Medronha, Luis V. Moura, Gabriel S. Simões, Rodrigo C. Barros

ACM Computing Surveys 2025 JournalPeriódico

Zero-shot performance of the Segment Anything Model (SAM) in 2D medical imaging: A comprehensive evaluation and practical guidelines

Christian Mattjie, Luis Vinicius De Moura, Rafaela Ravazio, Lucas Kupssinsku, Otávio Parraga, Marcelo Mussi Delucis, Rodrigo C. Barros

2023 IEEE 23rd International Conference on Bioinformatics and Bioengineering (BIBE) 2023 ConferenceConferência

Continual Learning for Sequential Personalization of Small Language Models: A Stability Monitoring Analysis

Thomas da Silva Paula, Lucas S. Kupssinskü, Rodrigo C. Barros

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

Anatomical Mask Conditioning for Low-Dose CT Denoising: An Architecture-Aware Investigation

Kristen K. Arguello, Raíssa Contassot, Augusto Ochoa Ughini, Lucas S. Kupssinskü, Rodrigo C. Barros

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

The Role of Contextual Grounding in Geoscience Benchmarks

Arthur Fachel, Otávio Parraga, André Luiz Durante Spigolon, George de Barros, Luiz Gonzaga Jr, Maurício Roberto Veronez, Rodrigo C. Barros, Lucas S. Kupssinskü

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

FairMOP: Benchmarking Fairness-Utility Trade-offs in Text-to-Image Models via Pareto Frontiers

Marco N. Bochernitsan, Rodrigo C. Barros, Lucas S. Kupssinskü

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

Latent Fact-Checking: Detecting Misinformation through Activation Engineering

Pedro T. Barcelos, Otávio Parraga, Marcelo M. Delucis, Lucas M. Fraga, Lucas S. Kupssinskü, Rodrigo C. Barros

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

Diffused Embeddings: Exploring Sentence Representations from DLMs

Ramiro N. Barros, Vinicius Turani, Rodrigo C. Barros, Lucas S. Kupssinskü

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

Inference-Time Machine Unlearning via Gated Activation Redirection

Vinícius Conte Turani, Otávio Parraga, João Vitor Boer Abitante, Kristen K. Arguello, Joana Pasquali, Ramiro N. Barros, Flavio du Pin Calmon, Christian Mattjie, Rodrigo C. Barros, Lucas S. Kupssinskü

arXiv preprint arXiv:2605.12765 2026 PreprintPreprint

Low-Rank Adapters Initialization via Gradient Surgery for Continual Learning

Joana Pasquali, Ramiro N. Barros, Arthur S. Bianchessi, Vinícius Conte Turani, João Vitor Boer Abitante, Rafaela Cappelari Ravazio, Christian Mattjie, Otávio Parraga, Lucas S. Kupssinskü, Rodrigo C. Barros

arXiv preprint arXiv:2605.12752 2026 PreprintPreprint

Bayesian Attention Mechanism: A Probabilistic Framework for Positional Encoding and Context Length Extrapolation

Arthur S. Bianchessi, Yasmin C. Aguirre, Rodrigo C. Barros, Lucas S. Kupssinskü

International Conference on Learning Representations (ICLR) 2026 ConferenceConferência

Quantization-Robust LLM Unlearning via Low-Rank Adaptation

João Vitor Boer Abitante, Joana Meneguzzo Pasquali, Luan Fonseca Garcia, Ewerton de Oliveira, Thomas da Silva Paula, Rodrigo C. Barros, Lucas S. Kupssinskü

arXiv preprint arXiv:2602.13151 2026 PreprintPreprint

Automated Fact-Checking in Brazilian Portuguese: Resources and Baselines

Marcelo M. Delucis, Lucas Fraga, Otávio Parraga, Christian Mattjie, Rafaela Ravazio, Rodrigo C. Barros, Lucas S. Kupssinskü

Simpósio Brasileiro de Tecnologia da Informação e da Linguagem Humana (STIL), SBC, pp. 137–148 2025 ConferenceConferência

Fairness in deep learning: A survey on vision and language research

Otavio Parraga, Martin D. More, Christian M. Oliveira, Nathan S. Gavenski, Lucas S. Kupssinskü, Adilson Medronha, Luis V. Moura, Gabriel S. Simões, Rodrigo C. Barros

ACM Computing Surveys 2025 JournalPeriódico

Resolvendo problemas? Sem problemas! Uma análise de ferramentas gamificadas com pontuação e ranqueamento no ensino de programação

Igor Ferreira, Pedro P. Wagner, Lucas S. Kupssinskü, Milene S. Silveira

Simpósio Brasileiro de Informática na Educação (SBIE) 2025 ConferenceConferência

A Comparative Analysis of CNN Models and Vision Transformers for Skin Lesion Classification

Yasmin C. Aguirre, Ashiley Bianca S. de Oliveira, Rodrigo C. Barros, Lucas S. Kupssinskü

Escola Regional de Aprendizado de Máquina e Inteligência Artificial da Região Sul (ERAMIA-RS) 2025 WorkshopWorkshop

Detection of Expiration Dates in Product Images Using YOLO

Lucas Andreotti, Lucas M. Fraga, Rodrigo C. Barros, Lucas S. Kupssinskü

Escola Regional de Aprendizado de Máquina e Inteligência Artificial da Região Sul (ERAMIA-RS) 2025 WorkshopWorkshop

Evaluation of 3D Convolutional Neural Networks on Isolated Brazilian Sign Language Recognition

Lorenzo C. Lazzarotto, Marcelo M. Delucis, Pedro T. Barcelos, Rodrigo C. Barros, Lucas S. Kupssinskü

Escola Regional de Aprendizado de Máquina e Inteligência Artificial da Região Sul (ERAMIA-RS) 2025 WorkshopWorkshop

Comparing Speech Embeddings and Acoustic Features for Unsupervised Subtyping of Parkinson's Disease

Jerusa D. Finatto, Rafaela C. Ravazio, Christian Mattjie, Rodrigo C. Barros, Artur Schuh, Vanessa B. dos Santos, Maira R. Olchik, Lucas S. Kupssinskü

2025 IEEE 25th International Conference on Bioinformatics and Bioengineering (BIBE) 2025 ConferenceConferência

Subtyping Parkinson's Disease Via Probabilistic Neuroimaging Data Clustering

Christian Mattjie, Rafaela Ravazio, Joana Pasquali, Lucas S. Kupssinskü, Luís V. de Moura, Rodrigo C. Barros, Daniel Teixeira-dos-Santos, Gabriela M. Pereira, Artur Schuh, Álvaro O. Franco, Marco A.M. Schlindwein, Andrei Bieger, Marco Antônio de Bastiani, Eduardo Zimmer, Thomas H. Schlickmann, Lara A. Souza

2025 IEEE 25th International Conference on Bioinformatics and Bioengineering (BIBE) 2025 ConferenceConferência

Evaluating Odor Selectivity in α-Synucleinopathy: ML-Based Odor Profiling

Christian Mattjie, Rafaela Ravazio, Eleanor Mitchell, Jonathan Bestwick, Lucas Silveira Kupssinskü, Alastair Noyce, Artur Schumacher Schuh, Rodrigo C. Barros

Brazilian Conference on Intelligent Systems (BRACIS) 2025 ConferenceConferência

Which is the Best LLM for Geosciences?

Vitor Hugo Garcez, Otávio Parraga, Ademir Marques, Andre L. Durante Spigolon, George De Barros, Luiz Gonzaga, Maurício Roberto Veronez, Rodrigo C. Barros, Lucas Silveira Kupssinskü

IGARSS 2025 – IEEE International Geoscience and Remote Sensing Symposium 2025 ConferenceConferência

Inference Time Debiasing Concepts in Diffusion Models

Lucas S. Kupssinskü, Marco N. Bochernitsan, Jordan Kopper

Intelligent Systems: 35th Brazilian Conference, BRACIS 2025, Proceedings, Part II 2025 ConferenceConferência

Unlocking the potential of vision-language models for mammography analysis

Luís Vinícius de Moura, Rafaela Ravazio, Christian Mattjie, Lucas Silveira Kupssinskü, Carla Maria Dal Sasso Freitas, Rodrigo C. Barros

2024 IEEE International Symposium on Biomedical Imaging (ISBI) 2024 ConferenceConferência

LERMO: a novel web game for AI-enhanced sign language recognition

Adilson Medronha, Luís Lima, Janaína Claudio, Lucas Kupssinskü, Rodrigo C. Barros

Proceedings of the AAAI Conference on Artificial Intelligence 2024 ConferenceConferência

Semi-supervised learning for mRALE score prediction in COVID-19 chest radiographs

Christian Mattjie, Luis V. de Moura, Rafaela C. Ravazio, Otavio Parraga, Lucas S. Kupssinskü, Adilson Medronha, Ana M.M. da Silva, Rodrigo C. Barros

Medical Imaging 2024: Computer-Aided Diagnosis (SPIE) 2024 ConferenceConferência

One against many: exploring multi-task learning generalization in source-code tasks

Otávio Parraga, Lucas S. Kupssinskü, Christian Mattjie, Rodrigo C. Barros

2024 International Joint Conference on Neural Networks (IJCNN) 2024 ConferenceConferência

From Images to Insights: Subtyping Parkinson's Disease Using Unsupervised Learning on MRI Data

D. Teixeira-dos-Santos, A. de-Oliveira-Franco, A. Bieger, C. Mattjie, F. Suzuki, G. Magalhaes Pereira, J. Rossi Catao, L. Angi Souza, L. Silveira Kupssinskü, L. Vinicius Moura, M. Schlindwein, R. Ravazio, S. Duarte Pinto, T. Hugentobler Schlickmann, E.R. Zimmer, M.A. De Bastiani, R.C. Barros, A.F. Schumacher Schuh

Movement Disorders 2024 JournalPeriódico

Clinical and Neuroimaging Biomarker Predictors of Cognitive Dysfunction in Parkinson's Disease: A Study Using PPMI Data

M. Schlindwein, A. Franco, J. Catao, D. Teixeira-dos-Santos, A. Bieger, T. Hugentobler Schlickmann, L. Angi Souza, C. Mattjie, F. Suzuki, G. Magalhaes Pereira, L. Silveira Kupssinskü, L. Vinicius Moura, R. Ravazio, S. Duarte Pinto, M. Bastiani, R. Barros, E.R. Zimmer, A. Schuh

Movement Disorders 2024 JournalPeriódico

Zero-shot performance of the Segment Anything Model (SAM) in 2D medical imaging: A comprehensive evaluation and practical guidelines

Christian Mattjie, Luis Vinicius De Moura, Rafaela Ravazio, Lucas Kupssinsku, Otávio Parraga, Marcelo Mussi Delucis, Rodrigo C. Barros

2023 IEEE 23rd International Conference on Bioinformatics and Bioengineering (BIBE) 2023 ConferenceConferência

An assisted multi-frame approach for super-resolution in hyperspectral images of rock samples

Daniel C. Zanotta, Ademir Marques Junior, João Gabriel Motta, Vinícius Sales, Tainá T. Guimarães, Lucas S. Kupssinsku, Graciela Racolte, Fabiane Bordin, Caroline L. Cazarin, Luiz Gonzaga Jr, Maurício R. Veronez

Computers & Geosciences 2023 JournalPeriódico

Radiomics for predicting oxygen necessity in COVID-19 patients using longitudinal lung computed tomography

Rafaela Ravazio, Christian Mattjie, Luis Vinicius De Moura, Lucas Kupssinskü, Rodrigo C. Barros, Denise Cantarelli Machado, Ana Maria Marques Da Silva

2023 IEEE 23rd International Conference on Bioinformatics and Bioengineering (BIBE) 2023 ConferenceConferência

An empirical evaluation of machine learning techniques to classify code comprehension based on EEG data

Lucian Jose Goncales, Kleinner Farias, Lucas Silveira Kupssinskü, Matheus Segalotto

Expert Systems with Applications 2022 JournalPeriódico

Hyperspectral data as a proxy for porosity estimation of carbonate rocks

L.S. Kupssinskü, T.T. Guimarães, M.d.B. Cardoso, L. Bachi, D. Zanotta, I. Estilon de Souza, A.X. Falcão, R.Q. Velloso, C.L. Cazarin, M.R. Veronez, L. Gonzaga Jr

Australian Journal of Earth Sciences 2022 JournalPeriódico

A nondestructive alternative for kerogen type determination in potential hydrocarbon source rocks using hyperspectral data and machine learning

Tainá T. Guimarães, Lucas S. Kupssinskü, Milena B. Cardoso, Leonardo Bachi, Alysson S. Aires, Emilie C. Koste, André L.D. Spigolon, Luiz Gonzaga, Mauricio R. Veronez

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2022 JournalPeriódico

The effects of applying filters on EEG signals for classifying developers' code comprehension

Lucian Jose Gonçales, Kleinner Farias, Lucas Kupssinskü, Matheus Segalotto

Journal of Applied Research and Technology 2021 JournalPeriódico

Mosis Lab Hyperspectral – Visualization and correlation of hyperspectral data on immersive virtual reality

Tainá Thomassim Guimarães, Diego Henrique Diemmer Mariani, Lucas Silveira Kupssinskü, Pedro Rossa, Rafael Kenji Horota, Rafael De Freitas, Luiz Roupinha, Branda Eloá Weppo, Aline Weschenfelder, André Luiz Durante Spigolon, Luiz Gonzaga, Maurício Roberto Veronez

2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2021 ConferenceConferência

Kerogen type classification in hydrocarbon source rocks using hyperspectral data and machine learning

Tainá Thomassim Guimarães, Lucas Silveira Kupssinskü, Daniel Capella Zanotta, João Gabriel Motta, André Luiz Durante Spigolon, Luiz Gonzaga, Maurício Roberto Veronez

2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2021 ConferenceConferência

Vizspectraldata: A web-based application for hyperspectral data visualization

Lucas Silveira Kupssinskü, Tainá Thomassim Guimarães, Caroline Lessio Cazarin, Luiz Gonzaga, Maurício Roberto Veronez

2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2021 ConferenceConferência

A Multi-Looking Approach for Spatial Super-Resolution on Laboratory-Based Hyperspectral Images

Daniel Capella Zanotta, Ademir Marques Júnior, Alysson Soares Aires, Fabiane Bordin, Graciela Racolte, João Gabriel Motta, Lucas Kupssinskü, Marianne Muller, Rafael Kenji Horota, Tainá Thomassin Guimarães, Vinícius Sales, Caroline Lessio Cazarin, Luiz Gonzaga, Maurício Roberto Veronez

2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2021 ConferenceConferência

Parthenos: A source code injection approach for software transformation

Gabriel Lopes Nunes, Kleinner Farias, Lucas Silveira Kupssinski

arXiv preprint arXiv:2105.05407 2021 PreprintPreprint

From the Cloud to the Digital Outcrop Model: Lithostratigraphic Interpretation in Mosis Suite

Lucas Silveira Kupssinskü, Milena de Barcelos Cardoso, Demétrius Nunes Alves, Rafael de Freitas, Gabriel Adamski, Wendel Blank Jeske, Tainá Thomassim Guimarães, André Luiz Durante Spigolon, Luiz Gonzaga Jr, Mauricio Roberto Veronez

Virtual Geoscience Conference (VGC 2021) 2021 ConferenceConferência

Evaluation of machine learning techniques to classify code comprehension based on developers' EEG data

Lucian José Gonçales, Kleinner Farias, Lucas Silveira Kupssinskü, Matheus Segalotto

19th Brazilian Symposium on Human Factors in Computing Systems (IHC) 2020 ConferenceConferência

A method for chlorophyll-a and suspended solids prediction through remote sensing and machine learning

Lucas Silveira Kupssinskü, Tainá Thomassim Guimarães, Eniuce Menezes de Souza, Daniel C. Zanotta, Mauricio Roberto Veronez, Luiz Gonzaga Jr, Frederico Fabio Mauad

Sensors 2020 JournalPeriódico

Virtual and digital outcrops in the petroleum industry: A systematic review

Ademir Marques Jr, Rafael Kenji Horota, Eniuce Menezes de Souza, Lucas Kupssinskü, Pedro Rossa, Alysson Soares Aires, Leonardo Bachi, Mauricio Roberto Veronez, Luiz Gonzaga Jr, Caroline Lessio Cazarin

Earth-Science Reviews 2020 JournalPeriódico

Improving spatial resolution of multispectral rock outcrop images using RGB data and artificial neural networks

Ademir Marques Junior, Eniuce Menezes De Souza, Marianne Müller, Diego Brum, Daniel Capella Zanotta, Rafael Kenji Horota, Lucas Silveira Kupssinskü, Maurício Roberto Veronez, Luiz Gonzaga Jr, Caroline Lessio Cazarin

Sensors 2020 JournalPeriódico

How much wavelet decomposition can improve the detection of surface fractures in remote sensing images?

Eniuce Menezes De Souza, Ademir Marques, Rafael K. Horota, Lucas Kupssinsku, Pedro Rossa, Alysson S. Aires, Luiz Gonzaga Silveira, Maurício R. Veronez, Carol L. Cazarin

IGARSS 2020 – IEEE International Geoscience and Remote Sensing Symposium 2020 ConferenceConferência

Prediction of chlorophyll-a and suspended solids through remote sensing and artificial neural networks

Lucas Silveira Kupssinskü, Tainá Thomassim Guimarães, Rafael de Freitas, Eniuce Menezes De Souza, Pedro Rossa, Ademir Marques, Maurício Roberto Veronez, Luiz Gonzaga, Caroline Lessio Cazarin, Frederico Fábio Mauad

2019 13th International Conference on Sensing Technology (ICST) 2019 ConferenceConferência

Imspector: Immersive system of inspection of bridges/viaducts

Mauricio Roberto Veronez, Luiz Gonzaga, Fabiane Bordin, Leonardo Campos Inocencio, Graciela Eliane dos Reis Racolte, Lucas Silveira Kupssinskü, Pedro Rossa, Leonardo Scalco

2019 IEEE Conference on Virtual Reality and 3D User Interfaces (VR) 2019 ConferenceConferência

VROffice: Interactive and immersive 3D visualization, manipulation and correlation of multivariable georeferenced datasets in virtual reality

Pedro Rossa, Rafael Kenji Horota, Alysson Soares Aires, Lucas Silveira Kupssinskü, Carolina Jung Kremer, Eniuce Menezes de Souza, Ademir Marques Jr, Luiz Gonzaga Jr, Mauricio Roberto Veronez, Caroline Lessio Cazarin

Proceedings of the 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems 2019 ConferenceConferência

Improving spatial resolution of LANDSAT spectral bands from a single RGB image using artificial neural network

Ademir Marques, Pedro Rossa, Rafael Kenji Horota, Diego Brum, Eniuce Menezes De Souza, Alyson Soares Aires, Lucas Kupssinskü, Maurício Roberto Veronez, Luis Gonzaga, Caroline Lessio Cazarin

2019 13th International Conference on Sensing Technology (ICST) 2019 ConferenceConferência

Hermes: A Natural Language Interface Model for Software Transformation

Michael William Chagas, Kleinner Farias, Lucian Gonçales, Lucas Kupssinskü, João Carlos Gluz

Proceedings of the XV Brazilian Symposium on Information Systems (SBSI) 2019 ConferenceConferência

Hermes: Um Modelo de Interface de Linguagem Natural para Transformação em Software

Michael William Chagas, Kleinner Farias, Lucian Gonçales, Lucas Kupssinskü, João Carlos Gluz

Simpósio Brasileiro de Sistemas de Informação (SBSI) 2019 ConferenceConferência

Modelagem e Simulação de uma Equipe de Desenvolvimento Scrum

Lucas Silveira Kupssinskü, Gustavo Souza, José Ernesto da Silva Barbosa

Anais do Computer on the Beach 2019 ConferenceConferência

Proposal of a method to determine the correlation between total suspended solids and dissolved organic matter in water bodies from spectral imaging and artificial neural networks

Maurício R. Veronez, Lucas S. Kupssinskü, Tainá T. Guimarães, Emilie C. Koste, Juarez M. Da Silva, Laís V. De Souza, William F.M. Oliverio, Rogélio S. Jardim, Ismael É. Koch, Jonas G. De Souza, Luiz Gonzaga Jr, Frederico F. Mauad, Leonardo C. Inocencio, Fabiane Bordin

Sensors 2018 JournalPeriódico

RIDERS: Road inspection & driver simulation

Mauricio R. Veronez, Luiz Gonzaga, Fabiane Bordin, Lucas Kupssinsku, Gabriel Lanzer Kannenberg, Tiago Duarte, Leonardo G. Santana, Lean Luca de Fraga, Demétrius Nunes Alves, Fernando Pinho Marson

2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR) 2018 ConferenceConferência

MITRAS Intelligent Model for Software Transformation

Lucas Silveira Kupssinskü, João Carlos Gluz

Computer on the Beach 2018 ConferenceConferência

Artificial neural network–based method to classify sedimentary rocks

Rodrigo Marques Figueiredo, Maurício Roberto Veronez, Francisco Manoel Wohnrath, Márcio Rosa da Silva, Luiz Gonzaga, Lucas Silveira Kupssinskü, Fabiane Bordin, Diego Brum, Caroline Lessio Cazarin

2018 12th International Conference on Sensing Technology (ICST) 2018 ConferenceConferência

Fairness in deep learning: A survey on vision and language research

Otavio Parraga, Martin D. More, Christian M. Oliveira, Nathan S. Gavenski, Lucas S. Kupssinskü, Adilson Medronha, Luis V. Moura, Gabriel S. Simões, Rodrigo C. Barros

ACM Computing Surveys 2025 JournalPeriódico

From Images to Insights: Subtyping Parkinson's Disease Using Unsupervised Learning on MRI Data

D. Teixeira-dos-Santos, A. de-Oliveira-Franco, A. Bieger, C. Mattjie, F. Suzuki, G. Magalhaes Pereira, J. Rossi Catao, L. Angi Souza, L. Silveira Kupssinskü, L. Vinicius Moura, M. Schlindwein, R. Ravazio, S. Duarte Pinto, T. Hugentobler Schlickmann, E.R. Zimmer, M.A. De Bastiani, R.C. Barros, A.F. Schumacher Schuh

Movement Disorders 2024 JournalPeriódico

Clinical and Neuroimaging Biomarker Predictors of Cognitive Dysfunction in Parkinson's Disease: A Study Using PPMI Data

M. Schlindwein, A. Franco, J. Catao, D. Teixeira-dos-Santos, A. Bieger, T. Hugentobler Schlickmann, L. Angi Souza, C. Mattjie, F. Suzuki, G. Magalhaes Pereira, L. Silveira Kupssinskü, L. Vinicius Moura, R. Ravazio, S. Duarte Pinto, M. Bastiani, R. Barros, E.R. Zimmer, A. Schuh

Movement Disorders 2024 JournalPeriódico

An assisted multi-frame approach for super-resolution in hyperspectral images of rock samples

Daniel C. Zanotta, Ademir Marques Junior, João Gabriel Motta, Vinícius Sales, Tainá T. Guimarães, Lucas S. Kupssinsku, Graciela Racolte, Fabiane Bordin, Caroline L. Cazarin, Luiz Gonzaga Jr, Maurício R. Veronez

Computers & Geosciences 2023 JournalPeriódico

An empirical evaluation of machine learning techniques to classify code comprehension based on EEG data

Lucian Jose Goncales, Kleinner Farias, Lucas Silveira Kupssinskü, Matheus Segalotto

Expert Systems with Applications 2022 JournalPeriódico

Hyperspectral data as a proxy for porosity estimation of carbonate rocks

L.S. Kupssinskü, T.T. Guimarães, M.d.B. Cardoso, L. Bachi, D. Zanotta, I. Estilon de Souza, A.X. Falcão, R.Q. Velloso, C.L. Cazarin, M.R. Veronez, L. Gonzaga Jr

Australian Journal of Earth Sciences 2022 JournalPeriódico

A nondestructive alternative for kerogen type determination in potential hydrocarbon source rocks using hyperspectral data and machine learning

Tainá T. Guimarães, Lucas S. Kupssinskü, Milena B. Cardoso, Leonardo Bachi, Alysson S. Aires, Emilie C. Koste, André L.D. Spigolon, Luiz Gonzaga, Mauricio R. Veronez

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing 2022 JournalPeriódico

The effects of applying filters on EEG signals for classifying developers' code comprehension

Lucian Jose Gonçales, Kleinner Farias, Lucas Kupssinskü, Matheus Segalotto

Journal of Applied Research and Technology 2021 JournalPeriódico

A method for chlorophyll-a and suspended solids prediction through remote sensing and machine learning

Lucas Silveira Kupssinskü, Tainá Thomassim Guimarães, Eniuce Menezes de Souza, Daniel C. Zanotta, Mauricio Roberto Veronez, Luiz Gonzaga Jr, Frederico Fabio Mauad

Sensors 2020 JournalPeriódico

Virtual and digital outcrops in the petroleum industry: A systematic review

Ademir Marques Jr, Rafael Kenji Horota, Eniuce Menezes de Souza, Lucas Kupssinskü, Pedro Rossa, Alysson Soares Aires, Leonardo Bachi, Mauricio Roberto Veronez, Luiz Gonzaga Jr, Caroline Lessio Cazarin

Earth-Science Reviews 2020 JournalPeriódico

Improving spatial resolution of multispectral rock outcrop images using RGB data and artificial neural networks

Ademir Marques Junior, Eniuce Menezes De Souza, Marianne Müller, Diego Brum, Daniel Capella Zanotta, Rafael Kenji Horota, Lucas Silveira Kupssinskü, Maurício Roberto Veronez, Luiz Gonzaga Jr, Caroline Lessio Cazarin

Sensors 2020 JournalPeriódico

Proposal of a method to determine the correlation between total suspended solids and dissolved organic matter in water bodies from spectral imaging and artificial neural networks

Maurício R. Veronez, Lucas S. Kupssinskü, Tainá T. Guimarães, Emilie C. Koste, Juarez M. Da Silva, Laís V. De Souza, William F.M. Oliverio, Rogélio S. Jardim, Ismael É. Koch, Jonas G. De Souza, Luiz Gonzaga Jr, Frederico F. Mauad, Leonardo C. Inocencio, Fabiane Bordin

Sensors 2018 JournalPeriódico

Continual Learning for Sequential Personalization of Small Language Models: A Stability Monitoring Analysis

Thomas da Silva Paula, Lucas S. Kupssinskü, Rodrigo C. Barros

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

Anatomical Mask Conditioning for Low-Dose CT Denoising: An Architecture-Aware Investigation

Kristen K. Arguello, Raíssa Contassot, Augusto Ochoa Ughini, Lucas S. Kupssinskü, Rodrigo C. Barros

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

The Role of Contextual Grounding in Geoscience Benchmarks

Arthur Fachel, Otávio Parraga, André Luiz Durante Spigolon, George de Barros, Luiz Gonzaga Jr, Maurício Roberto Veronez, Rodrigo C. Barros, Lucas S. Kupssinskü

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

FairMOP: Benchmarking Fairness-Utility Trade-offs in Text-to-Image Models via Pareto Frontiers

Marco N. Bochernitsan, Rodrigo C. Barros, Lucas S. Kupssinskü

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

Latent Fact-Checking: Detecting Misinformation through Activation Engineering

Pedro T. Barcelos, Otávio Parraga, Marcelo M. Delucis, Lucas M. Fraga, Lucas S. Kupssinskü, Rodrigo C. Barros

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

Diffused Embeddings: Exploring Sentence Representations from DLMs

Ramiro N. Barros, Vinicius Turani, Rodrigo C. Barros, Lucas S. Kupssinskü

Brazilian Conference on Intelligent Systems (BRACIS) 2026 ConferenceConferência

Bayesian Attention Mechanism: A Probabilistic Framework for Positional Encoding and Context Length Extrapolation

Arthur S. Bianchessi, Yasmin C. Aguirre, Rodrigo C. Barros, Lucas S. Kupssinskü

International Conference on Learning Representations (ICLR) 2026 ConferenceConferência

Automated Fact-Checking in Brazilian Portuguese: Resources and Baselines

Marcelo M. Delucis, Lucas Fraga, Otávio Parraga, Christian Mattjie, Rafaela Ravazio, Rodrigo C. Barros, Lucas S. Kupssinskü

Simpósio Brasileiro de Tecnologia da Informação e da Linguagem Humana (STIL), SBC, pp. 137–148 2025 ConferenceConferência

Resolvendo problemas? Sem problemas! Uma análise de ferramentas gamificadas com pontuação e ranqueamento no ensino de programação

Igor Ferreira, Pedro P. Wagner, Lucas S. Kupssinskü, Milene S. Silveira

Simpósio Brasileiro de Informática na Educação (SBIE) 2025 ConferenceConferência

Comparing Speech Embeddings and Acoustic Features for Unsupervised Subtyping of Parkinson's Disease

Jerusa D. Finatto, Rafaela C. Ravazio, Christian Mattjie, Rodrigo C. Barros, Artur Schuh, Vanessa B. dos Santos, Maira R. Olchik, Lucas S. Kupssinskü

2025 IEEE 25th International Conference on Bioinformatics and Bioengineering (BIBE) 2025 ConferenceConferência

Subtyping Parkinson's Disease Via Probabilistic Neuroimaging Data Clustering

Christian Mattjie, Rafaela Ravazio, Joana Pasquali, Lucas S. Kupssinskü, Luís V. de Moura, Rodrigo C. Barros, Daniel Teixeira-dos-Santos, Gabriela M. Pereira, Artur Schuh, Álvaro O. Franco, Marco A.M. Schlindwein, Andrei Bieger, Marco Antônio de Bastiani, Eduardo Zimmer, Thomas H. Schlickmann, Lara A. Souza

2025 IEEE 25th International Conference on Bioinformatics and Bioengineering (BIBE) 2025 ConferenceConferência

Evaluating Odor Selectivity in α-Synucleinopathy: ML-Based Odor Profiling

Christian Mattjie, Rafaela Ravazio, Eleanor Mitchell, Jonathan Bestwick, Lucas Silveira Kupssinskü, Alastair Noyce, Artur Schumacher Schuh, Rodrigo C. Barros

Brazilian Conference on Intelligent Systems (BRACIS) 2025 ConferenceConferência

Which is the Best LLM for Geosciences?

Vitor Hugo Garcez, Otávio Parraga, Ademir Marques, Andre L. Durante Spigolon, George De Barros, Luiz Gonzaga, Maurício Roberto Veronez, Rodrigo C. Barros, Lucas Silveira Kupssinskü

IGARSS 2025 – IEEE International Geoscience and Remote Sensing Symposium 2025 ConferenceConferência

Inference Time Debiasing Concepts in Diffusion Models

Lucas S. Kupssinskü, Marco N. Bochernitsan, Jordan Kopper

Intelligent Systems: 35th Brazilian Conference, BRACIS 2025, Proceedings, Part II 2025 ConferenceConferência

Unlocking the potential of vision-language models for mammography analysis

Luís Vinícius de Moura, Rafaela Ravazio, Christian Mattjie, Lucas Silveira Kupssinskü, Carla Maria Dal Sasso Freitas, Rodrigo C. Barros

2024 IEEE International Symposium on Biomedical Imaging (ISBI) 2024 ConferenceConferência

LERMO: a novel web game for AI-enhanced sign language recognition

Adilson Medronha, Luís Lima, Janaína Claudio, Lucas Kupssinskü, Rodrigo C. Barros

Proceedings of the AAAI Conference on Artificial Intelligence 2024 ConferenceConferência

Semi-supervised learning for mRALE score prediction in COVID-19 chest radiographs

Christian Mattjie, Luis V. de Moura, Rafaela C. Ravazio, Otavio Parraga, Lucas S. Kupssinskü, Adilson Medronha, Ana M.M. da Silva, Rodrigo C. Barros

Medical Imaging 2024: Computer-Aided Diagnosis (SPIE) 2024 ConferenceConferência

One against many: exploring multi-task learning generalization in source-code tasks

Otávio Parraga, Lucas S. Kupssinskü, Christian Mattjie, Rodrigo C. Barros

2024 International Joint Conference on Neural Networks (IJCNN) 2024 ConferenceConferência

Zero-shot performance of the Segment Anything Model (SAM) in 2D medical imaging: A comprehensive evaluation and practical guidelines

Christian Mattjie, Luis Vinicius De Moura, Rafaela Ravazio, Lucas Kupssinsku, Otávio Parraga, Marcelo Mussi Delucis, Rodrigo C. Barros

2023 IEEE 23rd International Conference on Bioinformatics and Bioengineering (BIBE) 2023 ConferenceConferência

Radiomics for predicting oxygen necessity in COVID-19 patients using longitudinal lung computed tomography

Rafaela Ravazio, Christian Mattjie, Luis Vinicius De Moura, Lucas Kupssinskü, Rodrigo C. Barros, Denise Cantarelli Machado, Ana Maria Marques Da Silva

2023 IEEE 23rd International Conference on Bioinformatics and Bioengineering (BIBE) 2023 ConferenceConferência

Mosis Lab Hyperspectral – Visualization and correlation of hyperspectral data on immersive virtual reality

Tainá Thomassim Guimarães, Diego Henrique Diemmer Mariani, Lucas Silveira Kupssinskü, Pedro Rossa, Rafael Kenji Horota, Rafael De Freitas, Luiz Roupinha, Branda Eloá Weppo, Aline Weschenfelder, André Luiz Durante Spigolon, Luiz Gonzaga, Maurício Roberto Veronez

2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2021 ConferenceConferência

Kerogen type classification in hydrocarbon source rocks using hyperspectral data and machine learning

Tainá Thomassim Guimarães, Lucas Silveira Kupssinskü, Daniel Capella Zanotta, João Gabriel Motta, André Luiz Durante Spigolon, Luiz Gonzaga, Maurício Roberto Veronez

2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2021 ConferenceConferência

Vizspectraldata: A web-based application for hyperspectral data visualization

Lucas Silveira Kupssinskü, Tainá Thomassim Guimarães, Caroline Lessio Cazarin, Luiz Gonzaga, Maurício Roberto Veronez

2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2021 ConferenceConferência

A Multi-Looking Approach for Spatial Super-Resolution on Laboratory-Based Hyperspectral Images

Daniel Capella Zanotta, Ademir Marques Júnior, Alysson Soares Aires, Fabiane Bordin, Graciela Racolte, João Gabriel Motta, Lucas Kupssinskü, Marianne Muller, Rafael Kenji Horota, Tainá Thomassin Guimarães, Vinícius Sales, Caroline Lessio Cazarin, Luiz Gonzaga, Maurício Roberto Veronez

2021 IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2021 ConferenceConferência

From the Cloud to the Digital Outcrop Model: Lithostratigraphic Interpretation in Mosis Suite

Lucas Silveira Kupssinskü, Milena de Barcelos Cardoso, Demétrius Nunes Alves, Rafael de Freitas, Gabriel Adamski, Wendel Blank Jeske, Tainá Thomassim Guimarães, André Luiz Durante Spigolon, Luiz Gonzaga Jr, Mauricio Roberto Veronez

Virtual Geoscience Conference (VGC 2021) 2021 ConferenceConferência

Evaluation of machine learning techniques to classify code comprehension based on developers' EEG data

Lucian José Gonçales, Kleinner Farias, Lucas Silveira Kupssinskü, Matheus Segalotto

19th Brazilian Symposium on Human Factors in Computing Systems (IHC) 2020 ConferenceConferência

How much wavelet decomposition can improve the detection of surface fractures in remote sensing images?

Eniuce Menezes De Souza, Ademir Marques, Rafael K. Horota, Lucas Kupssinsku, Pedro Rossa, Alysson S. Aires, Luiz Gonzaga Silveira, Maurício R. Veronez, Carol L. Cazarin

IGARSS 2020 – IEEE International Geoscience and Remote Sensing Symposium 2020 ConferenceConferência

Prediction of chlorophyll-a and suspended solids through remote sensing and artificial neural networks

Lucas Silveira Kupssinskü, Tainá Thomassim Guimarães, Rafael de Freitas, Eniuce Menezes De Souza, Pedro Rossa, Ademir Marques, Maurício Roberto Veronez, Luiz Gonzaga, Caroline Lessio Cazarin, Frederico Fábio Mauad

2019 13th International Conference on Sensing Technology (ICST) 2019 ConferenceConferência

Imspector: Immersive system of inspection of bridges/viaducts

Mauricio Roberto Veronez, Luiz Gonzaga, Fabiane Bordin, Leonardo Campos Inocencio, Graciela Eliane dos Reis Racolte, Lucas Silveira Kupssinskü, Pedro Rossa, Leonardo Scalco

2019 IEEE Conference on Virtual Reality and 3D User Interfaces (VR) 2019 ConferenceConferência

VROffice: Interactive and immersive 3D visualization, manipulation and correlation of multivariable georeferenced datasets in virtual reality

Pedro Rossa, Rafael Kenji Horota, Alysson Soares Aires, Lucas Silveira Kupssinskü, Carolina Jung Kremer, Eniuce Menezes de Souza, Ademir Marques Jr, Luiz Gonzaga Jr, Mauricio Roberto Veronez, Caroline Lessio Cazarin

Proceedings of the 27th ACM SIGSPATIAL International Conference on Advances in Geographic Information Systems 2019 ConferenceConferência

Improving spatial resolution of LANDSAT spectral bands from a single RGB image using artificial neural network

Ademir Marques, Pedro Rossa, Rafael Kenji Horota, Diego Brum, Eniuce Menezes De Souza, Alyson Soares Aires, Lucas Kupssinskü, Maurício Roberto Veronez, Luis Gonzaga, Caroline Lessio Cazarin

2019 13th International Conference on Sensing Technology (ICST) 2019 ConferenceConferência

Hermes: A Natural Language Interface Model for Software Transformation

Michael William Chagas, Kleinner Farias, Lucian Gonçales, Lucas Kupssinskü, João Carlos Gluz

Proceedings of the XV Brazilian Symposium on Information Systems (SBSI) 2019 ConferenceConferência

Hermes: Um Modelo de Interface de Linguagem Natural para Transformação em Software

Michael William Chagas, Kleinner Farias, Lucian Gonçales, Lucas Kupssinskü, João Carlos Gluz

Simpósio Brasileiro de Sistemas de Informação (SBSI) 2019 ConferenceConferência

Modelagem e Simulação de uma Equipe de Desenvolvimento Scrum

Lucas Silveira Kupssinskü, Gustavo Souza, José Ernesto da Silva Barbosa

Anais do Computer on the Beach 2019 ConferenceConferência

RIDERS: Road inspection & driver simulation

Mauricio R. Veronez, Luiz Gonzaga, Fabiane Bordin, Lucas Kupssinsku, Gabriel Lanzer Kannenberg, Tiago Duarte, Leonardo G. Santana, Lean Luca de Fraga, Demétrius Nunes Alves, Fernando Pinho Marson

2018 IEEE Conference on Virtual Reality and 3D User Interfaces (VR) 2018 ConferenceConferência

MITRAS Intelligent Model for Software Transformation

Lucas Silveira Kupssinskü, João Carlos Gluz

Computer on the Beach 2018 ConferenceConferência

Artificial neural network–based method to classify sedimentary rocks

Rodrigo Marques Figueiredo, Maurício Roberto Veronez, Francisco Manoel Wohnrath, Márcio Rosa da Silva, Luiz Gonzaga, Lucas Silveira Kupssinskü, Fabiane Bordin, Diego Brum, Caroline Lessio Cazarin

2018 12th International Conference on Sensing Technology (ICST) 2018 ConferenceConferência

A Comparative Analysis of CNN Models and Vision Transformers for Skin Lesion Classification

Yasmin C. Aguirre, Ashiley Bianca S. de Oliveira, Rodrigo C. Barros, Lucas S. Kupssinskü

Escola Regional de Aprendizado de Máquina e Inteligência Artificial da Região Sul (ERAMIA-RS) 2025 WorkshopWorkshop

Detection of Expiration Dates in Product Images Using YOLO

Lucas Andreotti, Lucas M. Fraga, Rodrigo C. Barros, Lucas S. Kupssinskü

Escola Regional de Aprendizado de Máquina e Inteligência Artificial da Região Sul (ERAMIA-RS) 2025 WorkshopWorkshop

Evaluation of 3D Convolutional Neural Networks on Isolated Brazilian Sign Language Recognition

Lorenzo C. Lazzarotto, Marcelo M. Delucis, Pedro T. Barcelos, Rodrigo C. Barros, Lucas S. Kupssinskü

Escola Regional de Aprendizado de Máquina e Inteligência Artificial da Região Sul (ERAMIA-RS) 2025 WorkshopWorkshop

Inference-Time Machine Unlearning via Gated Activation Redirection

Vinícius Conte Turani, Otávio Parraga, João Vitor Boer Abitante, Kristen K. Arguello, Joana Pasquali, Ramiro N. Barros, Flavio du Pin Calmon, Christian Mattjie, Rodrigo C. Barros, Lucas S. Kupssinskü

arXiv preprint arXiv:2605.12765 2026 PreprintPreprint

Low-Rank Adapters Initialization via Gradient Surgery for Continual Learning

Joana Pasquali, Ramiro N. Barros, Arthur S. Bianchessi, Vinícius Conte Turani, João Vitor Boer Abitante, Rafaela Cappelari Ravazio, Christian Mattjie, Otávio Parraga, Lucas S. Kupssinskü, Rodrigo C. Barros

arXiv preprint arXiv:2605.12752 2026 PreprintPreprint

Quantization-Robust LLM Unlearning via Low-Rank Adaptation

João Vitor Boer Abitante, Joana Meneguzzo Pasquali, Luan Fonseca Garcia, Ewerton de Oliveira, Thomas da Silva Paula, Rodrigo C. Barros, Lucas S. Kupssinskü

arXiv preprint arXiv:2602.13151 2026 PreprintPreprint

Parthenos: A source code injection approach for software transformation

Gabriel Lopes Nunes, Kleinner Farias, Lucas Silveira Kupssinski

arXiv preprint arXiv:2105.05407 2021 PreprintPreprint

Current Advisees Orientandos Atuais

Marcelo Mussi Delucis

Ph.D. CandidateDoutorando(a)

Identificação de Desinformação com LLMs

SinceDesde 2025

Laís Vieira de Souza

Ph.D. CandidateDoutorando(a) · Co-advisee · Coorientação

Modelagem preditiva de parâmetros geoquímicos de rochas geradoras de hidrocarbonetos com integração de dados espectrais e aprendizado de máquina

SinceDesde 2025

Amanda Pestana da Silva

Ph.D. CandidateDoutorando(a) · Co-advisee · Coorientação

Comparação Do Desempenho Entre Modelos Desenvolvidos Por Meio De Aprendizado De Máquina E A Morse Fall Scale Versão Brasileira Na Predição De Quedas Em Pacientes Adultos E Pessoas Idosas Hospitalizadas

SinceDesde 2024

Vitor Hugo Garcez Barcellos Dos Santos

Ph.D. CandidateDoutorando(a)

SinceDesde 2026

Arthur Sperhacke Bianchessi

M.Sc. StudentMestrando(a)

Long Context

SinceDesde 2025

Lucas Monteiro Fraga

M.Sc. StudentMestrando(a)

Misinformation Detection

SinceDesde 2025

Pedro Wagner

M.Sc. StudentMestrando(a)

Sentence Embeddings

SinceDesde 2024

Wolfgang Ricardo Rowell Junior

M.Sc. StudentMestrando(a)

Machine Learning for Weather Forecasting

SinceDesde 2024

Vinícius Turani

M.Sc. StudentMestrando(a)

Activation Engineering

SinceDesde 2026

João Vitor Boer Abitante

M.Sc. StudentMestrando(a)

Machine Unlearning

SinceDesde 2025

João Pedro Druschel Martins

Undergraduate ResearcherPesquisador(a) de Graduação

LLM para Avaliação de Qualidade de Relacionamento

SinceDesde 2024

Yasmin Aguirre

Undergraduate ResearcherPesquisador(a) de Graduação

Aplicação de Machine Learning com Radiômica e Deep Learning na Classificação de Lesões de Pele

SinceDesde 2024

Arthur Domingues Fachel Nunes

Undergraduate ResearcherPesquisador(a) de Graduação

Vision Language Models aplicados às Geociências

SinceDesde 2024

Want to join the group? I take full-time students at all levels: undergraduate, M.Sc., and Ph.D. Quer entrar no grupo? Oriento estudantes em dedicação integral em todos os níveis: graduação, mestrado e doutorado.

Read this first → Leia isto primeiro →

Alumni Egressos

Vitor Hugo Garcez Barcellos Dos Santos

Master'sMestradoCompletedConcluído

Lithology Classification from Conventional Well Logs: A Reproducible Benchmark using the Brazilian ANP Dataset

2024 – 2026

Marco Bochernitsan

Master'sMestradoCompletedConcluído

Evaluating the Effects of Fairness Enhancement Methods in Text-to-Image Models

2024 – 2026

Jerusa Finatto

Master'sMestradoCompletedConcluído

Exploring Speech Data in Parkinson's Disease: From Unsupervised Subtyping to Severity Estimation

2024 – 2026

Lucas Zanolete

Master'sMestradoCompletedConcluído · Co-advisee · Coorientação

Uma Abordagem Espacial de Preenchimento de Dados Faltantes para Previsão de Geração Fotovoltaica

2024 – 2026

Vladimir Barcelos Dorneles Junior

Master'sMestradoCompletedConcluído · Co-advisee · Coorientação

Aplicação De Ciência De Dados E Inteligência Artificial Na Análise De Dados De Correntes De Densidade Gerados Por Simulação Computacional

2025 – 2026

Marcelo Mussi

Master'sMestradoCompletedConcluído

Isolated Sign Language Recognition in LIBRAS

2021 – 2023

Ramiro N. Barros

UndergraduateGraduaçãoCompletedConcluído

Diffused Embeddings: Exploring Sentence Representations from DLMs

2025 – 2025

Vinicius Turani

UndergraduateGraduaçãoCompletedConcluído

Diffused Embeddings: Exploring Sentence Representations from DLMs

2025 – 2025

Camila Ilges

UndergraduateGraduaçãoCompletedConcluído

Agente Baseado em LLM para Suporte no Pós-Acordo de Mediação de Conflitos Extrajudiciais

2024 – 2024

Lucas Andreotti

UndergraduateGraduaçãoCompletedConcluído

Detecção da Data de Validade em embalagens com Redes Neurais YOLO

2024 – 2024

Luís Lima

UndergraduateGraduaçãoCompletedConcluído

Lermo

2023 – 2023

Daniela Rigoli

UndergraduateGraduaçãoCompletedConcluído

Detection of Cigarette Cabinet Openings Using Surveillance Camera Footage and Pre-trained VGG Models

2023 – 2023

Luigi Carvalho

UndergraduateGraduaçãoCompletedConcluído

Detection of Cigarette Cabinet Openings Using Surveillance Camera Footage and Pre-trained VGG Models

2023 – 2023

Morgana Weber

UndergraduateGraduaçãoCompletedConcluído

Predição do Tempo de Internação de Pacientes para Realocação de Pacientes em Leitos de UTI

2023 – 2023

Arthur Sperhacke Bianchessi

UndergraduateGraduaçãoCompletedConcluído

Bayesian Attention Mechanism - A Framework for Context Length Generalization

2025 – 2025

Bernardo Zamin

UndergraduateGraduaçãoCompletedConcluído

Aplicação de Keypoints em Videos de Linguagem de Sinais (Libras)

2024 – 2024

Vitor Lamas Esposito

UndergraduateGraduaçãoCompletedConcluído

Vision Language Models aplicados às Geociências

2024 – 2024

Luiza Dal Mas Pasini

UndergraduateGraduaçãoCompletedConcluído

Vision Language Models aplicados às Geociências

2024 – 2024

Lectures & Courses Disciplinas e Cursos

Deep Neural NetworksRedes Neurais Profundas

GraduatePós-graduação

Deep Learning IAprendizado Profundo I

UndergraduateGraduação

Deep Learning IIAprendizado Profundo II

UndergraduateGraduação

Machine LearningAprendizado de Máquina

UndergraduateGraduação

Theory of ComputingTeoria da Computação

GraduatePós-graduação

Scientific Methodology and Artificial Intelligence LabMetodologia Científica e Laboratório de Inteligência Artificial

GraduatePós-graduação