Weight weaving: Parameter pooling for data-free model merging
Levy Chaves, Eduardo Valle, Sandra Avila
In: Unifying Representations in Neural Models (UniReps) Workshop, Conference on Neural Information Processing Systems (NeurIPS'2025)
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Clustering discourses: Racial biases in short stories about women generated by large language models
Gustavo Bonil, João Gondim, Marina dos Santos, Simone Hashiguti, Helena Maia, Nadia Silva, Helio Pedrini, Sandra Avila
In: Symposium on Information and Human Language Technology (STIL'25)
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Attention over scene graphs: Indoor scene representations toward CSAI classification
Artur Barros, Carlos Caetano, João Macedo, Jefersson A. dos Santos, Sandra Avila
In: Workshop on From Scene Understanding to Human Modeling (SUtoHM), British Machine Vision Conference (BMVC'25)
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Leveraging self-supervised learning for scene classification in child sexual abuse imagery
Pedro H. V. Valois, João Macedo, Leo S. F. Ribeiro, Jefersson A. dos Santos, Sandra Avila
Forensic Science International: Digital Investigation (FSIDI'25)
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Neglected risks: The disturbing reality of children's images in datasets and the urgent call for accountability
Carlos Caetano, Gabriel O., Caio Petrucci, Artur Barros, Camila Laranjeira, Leo S. F. Ribeiro, Julia F., Jefersson A. dos Santos, Sandra Avila
In: ACM Conference on Fairness, Accountability, and Transparency (ACM FAccT'25)
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Minimizing risk through minimizing model-data interaction: A protocol for relying on proxy tasks when designing child sexual abuse imagery detection models
Thamiris Coelho, Leo S. F. Ribeiro, John Macedo, Jefersson A. dos Santos, Sandra Avila
In: ACM Conference on Fairness, Accountability, and Transparency (ACM FAccT'25)
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Ethics and AI in the classroom: Experience report with the AI-Audit game in Computer Science courses
Jhessica Silva, Helena Maia, Bruno Silva, John Gondim, Gustavo Bonil, Gabriel Santos, Helio Pedrini, Sandra Avila
In: Workshop on Computer Education (WEI) at CSBC'25
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Are explanations helpful? A comparative analysis of explainability methods in skin lesion classifiers
Rosa YG Paccotacya-Yanque, Alceu Bissoto, Sandra Avila
In: International Symposium on Medical Information Processing and Analysis (SIPAIM'24)
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Evaluation of ethics tools in the survey of ethical considerations of language models in Portuguese
Jhessica Silva, Alef Ferreira, Diego Moreira, Gabriel Santos, Gustavo Bonil, John Gondim, Luiz Pereira, Helena Maia, Nadia Silva, Simone Hashiguti, Sandra Avila, Helio Pedrini
In: Latin American Conference on Ethics in Artificial Intelligence (LAAI-Ethics'24)
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Approaches to ethics in Artificial Intelligence: A comparative analysis of national strategies
Renata Pelissari, Betania Campello, Guilherme Pelegrina, Ricardo Suyama, Sandra Avila, Leonardo Duarte
In: Latin American Conference on Ethics in Artificial Intelligence (LAAI-Ethics'24)
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FairPIVARA: Reducing and assessing biases in CLIP-based multimodal models
Diego Moreira, Alef Ferreira, Jhessica Silva, Gabriel dos Santos, Luiz Pereira, John Gondim, Gustavo Bonil, Helena Maia, Nadia Silva, Simone Hashiguti, Jefersson dos Santos, Helio Pedrini, Sandra Avila
In: Privacy, Fairness, Accountability and Transparency in Computer Vision (PFATCV) at BMVC'24
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Gender bias detection in court decisions: A Brazilian case study
Raysa Benatti, Fabiana Severi, Sandra Avila, Esther Colombini
In: ACM Conference on Fairness, Accountability, and Transparency (ACM FAccT'24)
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Even small correlation and diversity shifts pose dataset-bias issues
Alceu Bissoto, Catarina Barata, Eduardo Valle, Sandra Avila
Pattern Recognition Letters (PRL'24)
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Revolutionizing food advertising monitoring: A machine learning-based method for automated classification of food videos
Michele Bittencourt Rodrigues, Victória Pedrazzoli Ferreira, Rafael Moreira Claro, Ana Paula Bortoletto Martins, Sandra Avila, Paula Martins Horta
Public Health Nutrition (PHN'23)
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CAPIVARA: Cost-efficient approach for improving multilingual CLIP performance on low-resource languages
Gabriel Oliveira dos Santos, Diego AB Moreira, Alef Iury Ferreira, Jhessica Silva, Luiz Pereira, Pedro Bueno, Thiago Sousa, Helena Maia, Nádia da Silva, Esther Colombini, Helio Pedrini, Sandra Avila
In: Workshop on Multi-lingual Representation Learning (MRL) at EMNLP'23
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“The day I discovered I was collaborating on a eugenic project”: About imponderables in collaborative research
Sandra Avila, Marisol Marini
Platypus: The CASTAC Blog
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Assessing the generalizability of deep neural networks-based models for black skin lesions
Luana Barros, Levy Chaves, Sandra Avila
In: Iberoamerican Congress on Pattern Recognition (CIARP'23)
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The performance of transferability metrics does not translate to medical tasks
Levy Chaves, Alceu Bissoto, Eduardo Valle, Sandra Avila
In: Domain Adaptation and Representation Transfer (DART) at MICCAI'23
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Test-time selection for robust skin lesion analysis
Alceu Bissoto, Catarina Barata, Eduardo Valle, Sandra Avila
In: ISIC Skin Image Analysis Workshop at MICCAI'23
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A survey on deep learning for skin lesion segmentation
Zahra Mirikharaji, Kumar Abhishek, Alceu Bissoto, Catarina Barata, Sandra Avila, Eduardo Valle, M Emre Celebi, Ghassan Hamarneh
Medical Image Analysis (MEDIA'2023)
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The framing of time-dependent machine learning models improves risk estimation among young individuals with acute coronary syndromes
Luiz Sérgio Carvalho, Gustavo Alexim, Ana Claudia Nogueira, Marta Fernandez, Tito Rezende, Sandra Avila, Ricardo Reis, Alexandre Soares, Andrei Sposito
Scientific Reports (Sci Rep'2023)
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Mitigating biases in machine learning: A sociotechnical analysis
Livia Ruback, Denise Carvalho, Sandra Avila
Brazilian Journal of Information Systems (iSys'2022)
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Should I disclose my dataset? Caveats between reproducibility and individual data rights
Raysa M. Benatti, Camila ML Villarroel, Sandra Avila, Esther L. Colombini, Fabiana C. Severi
In: Workshop on Natural Legal Language Processing (NLLP) at EMNLP'22
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Artifact-based domain generalization of skin injury models
Alceu Bissoto, Catarina Barata, Eduardo Valle, Sandra Avila
In: ISIC Skin Image Analysis Workshop at ECCV'22
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Seeing without looking: Analysis pipeline for child sexual abuse datasets
Camila Laranjeira, Joao Macedo, Sandra Avila, Jefferson A. dos Santos
In: ACM Conference on Fairness, Accountability, and Transparency (ACM FAccT'22)
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Rationale and design of the Brazilian diabetes study: A prospective cohort of type 2 diabetes
Joaquim Barreto, Beatriz Luchiari, Marcus Lima, Alessandra Oliveira, Sofia Vitte, Gabriela Machado, Jessica Cunha, Cynthia Borges, Daniel Munhoz, Vicente Fernandes, Sheila Medorima, Ikaro Breder, Marta Fernandez, Thiago Quinaglia, Rodrigo Oliveira, Fernando Chaves, Carlos Arieta , Gil G.-Junior, Sandra Avila, Wilson Nadruz, Luiz Sergio Carvalho, Andrei Sposito
Current Medical Research and Opinion (CMRO'22)
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Weakly supervised attention-based models using activation maps for citrus mite and insect pest classification
Edson Bollis, Helena Maia, Hélio Pedrini, Sandra Avila
Computers and Electronics in Agriculture (COMPAG'22)
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#Pracegover: A large dataset for image captioning in Portuguese
Gabriel Oliveira dos Santos, Esther Luna Colombini, Sandra Avila
Date'22
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CIDer-R: Robust consensus-based image description evaluation
Gabriel Oliveira dos Santos, Esther Luna Colombini, Sandra Avila
In: Workshop on Noisy User-generated Text (W-NUT) at EMNLP'21
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What should we pay attention to when rating violent videos?
Marcos Vinícius Adam Teixeira, Sandra Avila
In: International Conference on Availability, Reliability and Security (ARES'21)
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Machine Learning Biases and Their Social Implications: A Case Study in Facial Recognition
Livia Ruback, Sandra Avila, Lucia Cantero
In: Workshop on the Implications of Computing in Society at CSBC'21
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GAN-based data augmentation and anonymization for skin-injury analysis: A critical review
Alceu Bissoto, Eduardo Valle, Sandra Avila
In: ISIC Skin Image Analysis Workshop at CVPR'21
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Machine learning improves the coronary identification of individuals with higher morbidity avoidable health costs after acute syndromes
Luiz Sérgio Fernandes de Carvalho, Silvio Gioppato, Marta Duran Fernandez, Bernardo Carvalho Trindade, José Carlos Quinaglia e Silva, Rebeca Gouget Sérgio Miranda, José Roberto Matos de Souza, Wilson Nadruz, Sandra Avila, Andrei Carvalho Sposito
Value in Health'20
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Less is more: Sample selection and label conditioning improve skin lesion segmentation
Vinicius Ribeiro, Sandra Avila, Edward Valle
In: ISIC Skin Image Analysis Workshop at CVPR'20
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Weakly supervised learning guided by activation mapping applied to a novel citrus pest benchmark
Edson Bollis, Hélio Pedrini, Sandra Avila
In: Agriculture-Vision: Challenges & Opportunities for Computer Vision in Agriculture at CVPR'20
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Date, depth, and design: Learning reliable models for skin lesion analysis
Eduardo Valle, Michel Fornaciali, Afonso Menegola, Julia Tavares, Flávia V. Bittencourt, Lin T. Li, Sandra Avila
Neurocomputing'20
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Grape detection, segmentation, and tracking using deep neural networks and three-dimensional association
Thiago T. Santos, L. Leonardo de Souza, A. Santos Andreza, Sandra Avila
Computers and Electronics in Agriculture'20
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Solo or ensemble? Choosing CNN architecture for melanoma classification
Fabio Perez, Sandra Avila, Edward Valle
In: ISIC Skin Image Analysis Workshop at CVPR'19
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(From) Constructing bias on skin lesion datasets
Alceu Bissoto, Michel Fornaciali, Eduardo Valle, Sandra Avila
In: ISIC Skin Image Analysis Workshop at CVPR'19
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Best Paper Award
Eyes in the skies: A data-driven fusion approach to identifying drug crops from remote sensing images
Anselmo Ferreira, Siovani C. Felipussi, Ramon Pires, Sandra Avila, Geise Santos, Jorge Lambert, Jiwu Huang, Anderson Rocha
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing (JSTARS'19)
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Enriching synthetic data with real noise using Neural Style Transfer
Naomi Takemoto, Lucas de M. Araújo, Tiago A. Coimbra, Martin Tygel, Sandra Avila, Edson Borin
In: International Congress of The Brazilian Geophysical Society (SBGf'19)
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Automatic detection of diffraction-apex using fully convolutional networks
Thamiris Coelho, Lucas de M. Araújo, Tiago A. Coimbra, Martin Tygel, Sandra Avila, Edson Borin
In: International Congress of The Brazilian Geophysical Society (SBGf'19)
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A data-driven approach to referable diabetic retinopathy detection
Ramon Pires, Sandra Avila, Jacques Wainer, Eduardo Valle, Michael D. Abramoff, Anderson Rocha
Artificial Intelligence in Medicine'19
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Combating the Elsagate phenomenon: Deep learning architectures for disturbing cartoons
Akari Ishikawa, Edson Bollis, Sandra Avila
In: International Workshop on Biometrics and Forensics (IWBF'19)
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Toward subjective violence detection in videos
Bruno Peixoto, Lavi Bahram, João Paulo M. Pereira, Sandra Avila, Zanoni Dias, Anderson Rocha
In: IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP'19)
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Skin lesion synthesis with generative adversarial networks
Alceu Bissoto, Fabio Perez, Eduardo Valle, Sandra Avila
In: ISIC Skin Image Analysis Workshop at MICCAI'18
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Data augmentation for skin lesion analysis
Fabio Perez, Cristina Vasconcelos, Sandra Avila, Edward Valle
In: ISIC Skin Image Analysis Workshop at MICCAI'18
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Best Paper Award
Machine learning application based in random forest for integrating mass spectrometry-based metabolomic data: A simple screening method for patients with Zika virus
Carlos Fernando O. Melo, Luiz C. Navarro, Diogo N. De Oliveira, [more 25 authors], Sandra Avila, Anderson Rocha, Rodrigo R. Catharino
Frontiers in Bioengineering and Biotechnology'18
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Multimodal data fusion for sensitive scene localization
Daniel Moreira, Sandra Avila, Mauricio Perez, Daniel Moraes, Vanessa Testoni, Eduardo Valle, Siome Goldenstein, Anderson Rocha
Information Fusion'18
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Leveraging deep neural networks to fight child pornography in the age of social media
Paulo Vitorino, Sandra Avila, Mauricio Perez, Anderson Rocha
Journal of Visual Communication and Image Representation (JVCI'18)
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Multimodal and real-time method for sensitive media content filtering
Sandra Avila, Daniel Moreira, Mauricio Perez, Daniel Moraes, Vanessa Testoni, Eduardo Valle, Siome Goldenstein, Anderson Rocha
United States Patent and Trademark Office (USPTO), US2017 0289624 A1
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Mid-level image representation for fruit fly identification (Diptera: Tephritidae)
Matheus Macedo, Sandra Avila, Roberto A. Zucchi, Fabio A. Faria
In: IEEE International Conference on eScience (eScience'17)
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RECOD Titans at ISIC Challenge 2017
Afonso Menegola, Julia Tavares, Michel Fornaciali, Lin Tzy Li, Sandra Avila, Edward Valle
In: ISIC 2017 - Skin Lesion Analysis Towards Melanoma Detection @ IEEE ISBI'17
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Award
Knowledge transfer for melanoma screening with deep learning
Afonso Menegola, Michel Fornaciali, Ramon Pires, Flávia V. Bittencourt, Sandra Avila, Edward Valle
In: IEEE International Symposium on Biomedical Imaging (ISBI'17)
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Video pornography detection through deep learning techniques and motion information
Mauricio Perez, Sandra Avila, Daniel Moreira, Daniel Moraes, Vanessa Testoni, Eduardo Valle, Siome Goldenstein, Anderson Rocha
Neurocomputing'17
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Robust storm features for violence detection
Daniel Moreira, Sandra Avila, Mauricio Perez, Daniel Moraes, Vanessa Testoni, Eduardo Valle, Siome Goldenstein, Anderson Rocha
In: IEEE Winter Conference on Applications of Computer Vision (WACV'17)
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Beyond lesion-based diabetic retinopathy: A direct approach for referral
Ramon Pires, Sandra Avila, Herbert Jelinek, Jacques Wainer, Eduardo Valle, Anderson Rocha
IEEE Journal of Biomedical and Health Informatics (JBHI'17)
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Pornography classification: The hidden clues in video space-time
Daniel Moreira, Sandra Avila, Mauricio Perez, Daniel Moraes, Vanessa Testoni, Eduardo Valle, Siome Goldenstein, Anderson Rocha
Forensic Science International (FSI'16)
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A two-tier image representation approach to detecting child pornography
Paulo Vitorino, Sandra Avila, Anderson Rocha
In: Computer Vision Workshop (WVC'16)
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Best Paper Award
A mid-level video representation based on binary descriptors: A case study for pornography detection
Carlos Caetano, Sandra Avila, William R. Schwartz, Silvio Guimarà £ es, Arnaldo de A. Araújo
Neurocomputing'16
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deep neural networks under stress
Micael Carvalho, Matthieu Cord, Sandra Avila, Nicolas Thome, Eduardo Valle
In: IEEE International Conference on Image Processing (ICIP'16)
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Multimodal and real-time method for content filtering
Sandra Avila, Daniel Moreira, Mauricio Perez, Daniel Moraes, Vanessa Testoni, Eduardo Valle, Siome Goldenstein, Anderson Rocha
National Institute of Industrial Property (INPI), Patent Number: BR1020160072654
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RECOD at MediaEval 2015: Affective impact of movies task
Daniel Moreira, Sandra Avila, Mauricio Perez, Daniel Moraes, Vanessa Testoni, Eduardo Valle, Siome Goldenstein, Anderson Rocha
In: Working Notes Proceedings of the MediaEval 2015 Workshop (MediaEval'15)
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Programming teaching to high school students: An experience report
Nadja Ramos, Carmen Freitas, Sandra Avila, Paula Costa, Vanessa Testoni, Juliana Borin
In: Workshop on Computer Education (WEI), Congress of the Brazilian Computer Society (CSBC'15)
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RECOD at MediaEval 2014: Violent scenes detection task
Sandra Avila, Daniel Moreira, Mauricio Perez, Daniel Moraes, Isabela Cota, Vanessa Testoni, Eduardo Valle, Siome Goldenstein, Anderson Rocha
In: Working Notes Proceedings of the MediaEval 2014 Workshop (MediaEval'14)
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Award
Pornography detection using BossaNova video descriptor
Carlos Caetano, Sandra Avila, Silvio Guimarães, Arnaldo de A. Araújo
In: European Signal Processing Conference (EUSIPCO'14)
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Statistical Learning Approach for Robust Melanoma Screening
Michel Fornaciali, Sandra Avila, Micael Carvalho, Eduardo Valle
In: Conference on Graphics, Patterns and Images (SIBGRAPI'14)
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Automatic diabetic retinopathy detection using BossaNova representation
Ramon Pires, Sandra Avila, Herbert Jelinek, Jacques Wainer, Eduardo Valle, Anderson Rocha
In: International Conference of the IEEE Engeneering in Medicine and Biology Society (EMBC'14)
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The impact of visual attributes on online image diffusion
Luam Totti, Felipe Costa, Sandra Avila, Eduardo Valle, Wagner Meira, Virgilio Almeida
In: ACM Web Science Conference (WebSci'14)
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Representing local binary descriptors with BossaNova for visual recognition
Carlos Caetano, Sandra Avila, Silvio Guimarães, Arnaldo de A. Araújo
In: ACM Symposium On Applied Computing (SAC'14)
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Image classification using object detectors
Thibaut Durand, Nicolas Thome, Matthieu Cord, Sandra Avila
In: IEEE International Conference on Image Processing (ICIP'13)
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Content-based filtering for video sharing social networks
Eduardo Vale, Sandra Avila, Fillipe Souza, Marcelo Coelho, Arnaldo de A. Araújo
In: Workshop on Computer Forensics (WFC), Brazilian Symposium on Information and Computer System Security (SBSeg'12)
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BossaNova at ImageCLEF 2012 Flickr photo annotation task
Sandra Avila, Nicolas Thome, Matthieu Cord, Eduardo Valle, Arnaldo de A. Araújo
In: Working Notes of the Conference and Labs of the Evaluation Forum (CLEF'12)
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Award
BOSSA: Extended BoW formalism for image classification
Sandra Avila, Nicolas Thome, Matthieu Cord, Eduardo Valle, Arnaldo de A. Araújo
In: IEEE International Conference on Image Processing (ICIP'11)
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Nude detection in video using bag-of-visual-features
Ana Lopes, Sandra Avila, Anderson Peixoto, Rodrigo Oliveira, Marcelo Coelho, Arnaldo de A. Araújo
In: Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI'09)
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A bag-of-features approach based on hue-SIFT descriptor for nude detection
Ana Lopes, Sandra Avila, Anderson Peixoto, Rodrigo Oliveira, Arnaldo de A. Araújo
In: European Signal Processing Conference (EUSIPCO'09)
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Automatic frame extraction for improving content-based image retrieval of historical photographs
Ana Lopes, David Flam, Natalia Batista, Sandra Avila, Jussara Almeida, Arnaldo de A. Araújo
In: Brazilian Symposium on Multimedia and the Web (WebMedia'08)
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An Approach Based on Color Characteristics for Automatic Elaboration and Subjective Evaluation of Static Video Abstracts
Sandra Avila
Master's Thesis
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VSUMM: An approach to automatic video summarization and quantitative evaluation
Sandra Avila, Antonio da Luz, Arnaldo de A. Araújo, Matthieu Cord
In: Brazilian Symposium on Computer Graphics and Image Processing (SIBGRAPI'08)
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Evaluating a zoning mechanism and class-modular architecture for handwritten characters recognition
Sandra Avila, Leonardo Matos, Cinthia Freitas, João Carvalho
In: Iberoamerican Congress on Pattern Recognition (CIARP'07)
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Evaluation of a Zoning Mechanism for Classifying Handwritten Character Images
Sandra Avila
Undergraduate Thesis
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