Search Results for author: Adriano Veloso

Found 14 papers, 0 papers with code

Mitigating Bias in Facial Analysis Systems by Incorporating Label Diversity

no code implementations13 Apr 2022 Camila Kolling, Victor Araujo, Adriano Veloso, Soraia Raupp Musse

Hence, in this work, we introduce a novel learning method that combines both subjective human-based labels and objective annotations based on mathematical definitions of facial traits.

Ensemble Learning

Modeling Pharmacological Effects with Multi-Relation Unsupervised Graph Embedding

no code implementations30 Apr 2020 Dehua Chen, Amir Jalilifard, Adriano Veloso, Nivio Ziviani

Once representations for drugs and diseases are obtained we learn the likelihood of new links (that is, new indications) between drugs and diseases.

Graph Embedding Relation

Explainable Deep CNNs for MRI-Based Diagnosis of Alzheimer's Disease

no code implementations25 Apr 2020 Eduardo Nigri, Nivio Ziviani, Fabio Cappabianco, Augusto Antunes, Adriano Veloso

Deep Convolutional Neural Networks (CNNs) are becoming prominent models for semi-automated diagnosis of Alzheimer's Disease (AD) using brain Magnetic Resonance Imaging (MRI).

Assessing the Reliability of Visual Explanations of Deep Models with Adversarial Perturbations

no code implementations22 Apr 2020 Dan Valle, Tiago Pimentel, Adriano Veloso

Thus, in this work we propose an objective measure to evaluate the reliability of explanations of deep models.

Feature Importance

Automatic Tag Recommendation for Painting Artworks Using Diachronic Descriptions

no code implementations21 Apr 2020 Gianlucca Zuin, Adriano Veloso, João Cândido Portinari, Nivio Ziviani

To validate our method we build a model based on a weakly-supervised neural network for over $5{,}300$ paintings with hand-labeled descriptions made by experts for the paintings of the Brazilian painter Candido Portinari.

Clustering TAG

Learning Transferable Features for Speech Emotion Recognition

no code implementations23 Dec 2019 Alison Marczewski, Adriano Veloso, Nívio Ziviani

We use transferable features to enable model adaptation from multiple source domains, given the sparseness of speech emotion data and the fact that target domains are short of labeled data.

Domain Adaptation Emotional Intelligence +1

Dynamic Prediction of ICU Mortality Risk Using Domain Adaptation

no code implementations20 Dec 2019 Tiago Alves, Alberto Laender, Adriano Veloso, Nivio Ziviani

Thus, mortality prediction models using patient data from a particular ICU population may perform suboptimally in other populations because the features used to train such models have different distributions across the groups.

Domain Adaptation ICU Mortality +2

UaiNets: From Unsupervised to Active Deep Anomaly Detection

no code implementations ICLR 2019 Tiago Pimentel, Marianne Monteiro, Juliano Viana, Adriano Veloso, Nivio Ziviani

This work presents a method for active anomaly detection which can be built upon existing deep learning solutions for unsupervised anomaly detection.

Unsupervised Anomaly Detection

Automated Essay Scoring in the Presence of Biased Ratings

no code implementations NAACL 2018 Evelin Amorim, Marcia Can{\c{c}}ado, Adriano Veloso

We present features to quantify rater bias based on their comments, and we found that rater bias plays an important role in automated essay scoring.

Automated Essay Scoring

Deep Active Learning for Anomaly Detection

no code implementations23 May 2018 Tiago Pimentel, Marianne Monteiro, Adriano Veloso, Nivio Ziviani

Anomalies are intuitively easy for human experts to understand, but they are hard to define mathematically.

Active Learning Unsupervised Anomaly Detection

Fast Node Embeddings: Learning Ego-Centric Representations

no code implementations ICLR 2018 Tiago Pimentel, Adriano Veloso, Nivio Ziviani

Representation learning is one of the foundations of Deep Learning and allowed important improvements on several Machine Learning tasks, such as Neural Machine Translation, Question Answering and Speech Recognition.

Link Prediction Machine Translation +6

A Multi-aspect Analysis of Automatic Essay Scoring for Brazilian Portuguese

no code implementations EACL 2017 Evelin Amorim, Adriano Veloso

The AES system proposed employs several features already employed by AES systems for English language.

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