VLDB 2026 Research / reviewers in the wild / expert
Newarney Torrezão da Costa
dblp:248/4405
· DBLP profile ↗
10ranked-venue papers
2as first author
9since 2021 · last 2026
0000-0002-4954-176XORCID · verified
Domains — the database's venue-derived domains; a paper can count in several
Human-computer interaction and ubiquitous computing · 10 · 2 first-author · 9 since 2021Applied, interdisciplinary, general and emerging computing · 10 · 2 first-author · 9 since 2021
| Year | Publication | Venue | Position |
|---|---|---|---|
| 2026 | Understanding Teacher Revisions of Large Language Model-Generated Feedback
Conrad Borchers, Luiz A. L. Rodrigues, Newarney Torrezão da Costa, Cleon Xavier, Rafael Ferreira Leite de Mello |
AIED | 3 |
| 2026 | Translating XAI Into Actionable Feedback Using LLMs to Prevent Student Dropout
Filipe D. Pereira, George Zambonin, André C. A. Nascimento, Mario A. P. Santos, Mariana G. Mello, Tyagi M. Lima, Luiz A. L. Rodrigues, Cleon Xavier, Newarney Torrezão da Costa, Dragan Gasevic, Gabriel Alves 0001, Rafael Ferreira Leite de Mello |
AIED | 9 |
| 2026 | From Solo Graders to Assisted Annotation: Integrating LLM Suggestions into the Educational Data Creation Pipeline
Cleon Xavier, Luiz A. L. Rodrigues, Ana Valdo, Ariadne Carvalho, Gabriela Matos, Lucas Kalinke, Ramon Vilela, Erika Resende, Thais Moraes, Nara Nobre-Silva, Newarney Torrezão da Costa, Fabíola Gonçalves C. Ribeiro, Anderson Pinheiro, Dragan Gasevic, Rafael Ferreira Leite de Mello |
LAK | 12 |
| 2025 | The Impact of Oversampling Techniques on the Detection of Cognitive Presence
Vitor Rolim, Cleon Xavier, Luiz A. L. Rodrigues, Newarney Torrezão da Costa, Rafael Dueire Lins, Dragan Gasevic, Rafael Ferreira Leite de Mello |
AIED (5) | 4 |
| 2025 | Tutoria: Delivering Personalized Feedback at Scale with Artificial Intelligence
Newarney Torrezão da Costa, Cleon Xavier, Fabíola Gonçalves C. Ribeiro, Gabriel Alves 0001, Luiz A. L. Rodrigues, Taciana Pontual Falcão, Rafael Ferreira Leite de Mello |
EC-TEL (2) | 1 |
| 2025 | Escreva Mais: A Mobile Application to Enhancing Writing Skills in Resource-Constrained Classrooms
Rafael Ferreira Leite de Mello, Gabriel Barbosa, Silas Augusto, Lenon Anthony, Jamilla Lobo, Cleon Xavier, Newarney Torrezão da Costa, Luiz A. L. Rodrigues |
EC-TEL (2) | 7 |
| 2025 | Automatic Short Answer Grading in the LLM Era: Does GPT-4 with Prompt Engineering beat Traditional Models?abstractAssessing short answers in educational settings is challenging due to the need for scalability and accuracy, which led to the field of Automatic Short Answer Grading (ASAG). Traditional machine learning models, such as ensemble and embeddings, have been widely researched in ASAG, but they often suffer from generalizability issues. Recently, Large Language Models (LLMs) emerged as an alternative to optimize ASAG systems. However, previous research has failed to present a comprehensive analysis of LLMs' performance powered by prompt engineering strategies and compare its capabilities to traditional models. This study presents a comparative analysis between traditional machine learning models and GPT-4 in the context of ASAG. We investigated the effectiveness of different models and text representation techniques and explored prompt engineering strategies for LLMs. The results indicate that traditional machine learning models outperform LLMs. However, GPT-4 showed promising capabilities, especially when configured with optimized prompt components, such as few-shot examples and clear instructions. This study contributes to the literature by providing a detailed evaluation of LLM performance compared to traditional machine learning models in a multilingual ASAG context, offering insights for developing more efficient automatic grading systems. Rafael Ferreira Leite de Mello, Cleon Pereira Junior, Luiz A. L. Rodrigues, Filipe D. Pereira, Luciano de Souza Cabral, Newarney Torrezão da Costa, Geber L. Ramalho, Dragan Gasevic |
LAK | 6 |
| 2025 | LLMs Performance in Answering Educational Questions in Brazilian Portuguese: A Preliminary Analysis on LLMs Potential to Support Diverse Educational NeedsabstractQuestion-answering systems facilitate adaptive learning and respond to student queries, making education more responsive. Despite that, challenges such as natural language understanding and context management complicate their widespread adoption, where Large Language Models (LLMs) offer a promising solution. However, existing research is predominantly focused on English, proprietary models, and often limited to a single question type, subject, or skill, leaving a gap in understanding LLMs' performance in languages like Brazilian Portuguese and across questions of various characteristics. This study investigates how LLMs could be integrated in an educational question-answering system efficiently to answer different question types (multiple-choice, cloze, open-ended), subjects (mathematics and Portuguese language), and skills (summation/subtraction, multiplication, interpretation, and grammar), evaluating answers by GPT-4 - the main LLM at the time of writing - and Sabiá - the open-source Brazilian Portuguese LLM - based on grades assigned by two experienced teachers. Overall, both LLMs demonstrated strong overall performance, with mean scores close to 9.8 out of 10. However, specific challenges emerged, with distinct strengths and weaknesses observed for each model, such as GPT-4's error in a multiple-choice subtraction question and Sabiá's misinterpretation of a cloze question. Luiz A. L. Rodrigues, Cleon Xavier, Newarney Torrezão da Costa, Hyan Batista, Luiz Felipe Bagnhuk Silva, Weslei Chaleghi de Melo, Dragan Gasevic, Rafael Ferreira Leite de Mello |
LAK | 3 |
| 2022 | Sequencing and Recommending Pedagogical Activities from Bloom's Taxonomy using RASI and Multi-objective PSO
Denis José Almeida, Márcia Aparecida Fernandes, Newarney Torrezão da Costa |
CSEDU (2) | 3 |
| 2019 | Application of AI Planning in the Context of e-LearningabstractArtificial Intelligence Planning (AIP) is a technique that can be used to customize and automate one or more stages of the teaching process, in order to provide customized pedagogical recommendations. In order to investigate the advances, challenges and limitations of this technique in this scenario, this paper presents a Systematic Review of Literature (SRL), whose results allowed to observe that the recommendation of personalized learning paths are the main pedagogical actions addressed. In this regard, we also note that it is important to advance the research in this area, proposing a better refinement in the modeling of the learner, besides expanding the universe of recommended pedagogical actions. Newarney Torrezão da Costa, Cleon Xavier Pereira Júnior, Rafael Dias Araújo, Márcia Aparecida Fernandes |
ICALT | 1 |