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23 results on '"Araujo, Ricardo M."'

1. Overview of ABSAPT at IberLEF 2024: Overview of the Task on Aspect-Based Sentiment Analysis in Portuguese.

Author

Thurow Bender, Alexandre, Gomes, Gabriel A., Lopes, Emerson P., Araujo, Ricardo M., de Freitas, Larissa A., and Corrêa, Ulisses B.

Subjects
LANGUAGE models, SENTIMENT analysis, DATA augmentation, CHATGPT, DATA modeling
Abstract

Copyright of Procesamiento del Lenguaje Natural is the property of Sociedad Espanola para el Procesamiento del Lenguaje Natural and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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3. Investigating Crime Rate Prediction Using Street-Level Images and Siamese Convolutional Neural Networks

Author

Andersson, Virginia O., Birck, Marco A. F., Araujo, Ricardo M., Barbosa, Simone Diniz Junqueira, Series editor, Chen, Phoebe, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Yuan, Junsong, Series editor, Zhou, Lizhu, Series editor, Barone, Dante Augusto Couto, editor, Teles, Eduardo Oliveira, editor, and Brackmann, Christian Puhlmann, editor

Published
2017
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4. Towards Graffiti Classification in Weakly Labeled Images Using Convolutional Neural Networks

Author

Munsberg, Glauco R., Ballester, Pedro, Birck, Marco F., Correa, Ulisses B., Andersson, Virginia O., Araujo, Ricardo M., Barbosa, Simone Diniz Junqueira, Series editor, Chen, Phoebe, Series editor, Filipe, Joaquim, Series editor, Kotenko, Igor, Series editor, Sivalingam, Krishna M., Series editor, Washio, Takashi, Series editor, Yuan, Junsong, Series editor, Zhou, Lizhu, Series editor, Barone, Dante Augusto Couto, editor, Teles, Eduardo Oliveira, editor, and Brackmann, Christian Puhlmann, editor

Published
2017
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5. ABSAPT 2022 at IberLEF: Overview of the Task on Aspect-Based Sentiment Analysis in Portuguese

Author

da Silva, Felix L.V., Xavier, Guilherme da S., Mensenburg, Heliks M., Rodrigues, Rodrigo F., dos Santos, Leonardo P., Araujo, Ricardo M., Corrêa, Ulisses B., de Freitas, Larissa A., da Silva, Felix L.V., Xavier, Guilherme da S., Mensenburg, Heliks M., Rodrigues, Rodrigo F., dos Santos, Leonardo P., Araujo, Ricardo M., Corrêa, Ulisses B., and de Freitas, Larissa A.

Abstract

Este artículo presenta la Tarea sobre Análisis de Sentimientos basado en Aspectos en Portugués (ABSAPT), realizada en el IberLEF 2022. Les pedimos a los participantes que desarrollaran sistemas capaces de identificar aspectos (AE) y extraer la polaridad (ASC) en textos escritos en portugués. Doce equipos se inscribieron en la tarea, entre los cuales cinco presentaron predicciones e informes técnicos. El sistema con mejor rendimiento logró un valor de precisión (Acc) de 0,67 para la subtarea de AE (Equipo Deep Learning Brasil) y un valor de precisión equilibrada (Bacc) de 0,82 para la subtarea de ASC (Equipo Deep Learning Brasil)., This paper presents the task on Aspect-Based Sentiment Analysis in Portuguese (ABSAPT), held within Iberian Languages Evaluation Forum (IberLEF 2022). We asked the participants to develop systems capable of extracting aspects (AE) and classifying sentiment of aspects (ASC) in texts. We created one corpora containing reviews about hotels. Twelve teams registered to the task, among which five submitted predictions and technical reports. The best performing system achieved an Accuracy (Acc) value of 0.67 in AE sub-task (Team Deep Learning Brasil) and a Balanced Accuracy (Bacc) value of 0.82 in ASC sub-task (Team Deep Learning Brasil).

Published
2022

7. Soluble Amyloid-Beta Isoforms Predict Downstream Alzheimer’s Disease Pathology

Author

Povala, Guilherme, primary, Bellaver, Bruna, additional, De Bastiani, Marco Antônio, additional, Brum, Wagner S., additional, Ferreira, Pamela C. L., additional, Bieger, Andrei, additional, Pascoal, Tharick A., additional, Benedet, Andrea L., additional, Souza, Diogo O., additional, Araujo, Ricardo M., additional, Zatt, Bruno, additional, Rosa-Neto, Pedro, additional, and Zimmer, Eduardo R., additional

Published
2021
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8. Additional file 3 of Soluble amyloid-beta isoforms predict downstream Alzheimer���s disease pathology

Author

Povala, Guilherme, Bellaver, Bruna, De Bastiani, Marco Ant��nio, Brum, Wagner S., Ferreira, Pamela C. L., Bieger, Andrei, Pascoal, Tharick A., Benedet, Andrea L., Souza, Diogo O., Araujo, Ricardo M., Zatt, Bruno, Rosa-Neto, Pedro, and Zimmer, Eduardo R.

Subjects
mental disorders
Abstract

Additional file 3. Differentially expressed proteins (DEPs) in the cerebrospinal fluid (CSF) of cognitively unimpaired (CU) tau pathology positive (T+) compared to negative (T���) subjects. Table containing Protein ID, p-value, adjusted p-value, t-value and logFC for differentially expressed proteins in the cerebrospinal fluid of cognitively unimpaired tau pathology positive compared to negative subjects.

Published
2021
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9. Additional file 4 of Soluble amyloid-beta isoforms predict downstream Alzheimer���s disease pathology

Author

Povala, Guilherme, Bellaver, Bruna, De Bastiani, Marco Ant��nio, Brum, Wagner S., Ferreira, Pamela C. L., Bieger, Andrei, Pascoal, Tharick A., Benedet, Andrea L., Souza, Diogo O., Araujo, Ricardo M., Zatt, Bruno, Rosa-Neto, Pedro, and Zimmer, Eduardo R.

Abstract

Additional file 4. Differentially expressed proteins (DEPs) in the cerebrospinal fluid (CSF) of cognitively unimpaired (CU) neurodegeneration positive (N+) compared to negative (N���) subjects. Table containing Protein ID, p-value, adjusted p-value, t-value and logFC for differentially expressed proteins in the cerebrospinal fluid of cognitively unimpaired neurodegeneration positive compared to negative subjects

Published
2021
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10. Additional file 2 of Soluble amyloid-beta isoforms predict downstream Alzheimer���s disease pathology

Author

Povala, Guilherme, Bellaver, Bruna, De Bastiani, Marco Ant��nio, Brum, Wagner S., Ferreira, Pamela C. L., Bieger, Andrei, Pascoal, Tharick A., Benedet, Andrea L., Souza, Diogo O., Araujo, Ricardo M., Zatt, Bruno, Rosa-Neto, Pedro, and Zimmer, Eduardo R.

Subjects
mental disorders, psychological phenomena and processes
Abstract

Additional file 2. Machine learning results for predicting neurodegeneration positivity (N+). Table containing features, AUC and standard deviation results for all 1023 models for predicting neurodegeneration positivity.

Published
2021
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11. Identifying Nonlinear Patterns of 5-Year Suicide Risk Incidence in Youth: A Gradient Tree Boosting and SHAP Study

Author

Cardoso, Taiane, primary, Ballester, Pedro, additional, Moreira, Fernanda Pedrotti, additional, Azevedo da Silva, Ricardo, additional, Mondin, Thaise Campos, additional, Araujo, Ricardo M., additional, Montezano, Bruno Braga, additional, Kapczinski, Flavio, additional, Frey, Benicio, additional, Jansen, Karen, additional, and Dias de Mattos Souza, Luciano, additional

Published
2021
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