Search Results for author: Artur Jordao

Found 8 papers, 5 papers with code

When Layers Play the Lottery, all Tickets Win at Initialization

1 code implementation25 Jan 2023 Artur Jordao, George Correa de Araujo, Helena de Almeida Maia, Helio Pedrini

In this work, we investigate LTH and pruning at initialization from the lens of layer pruning.

On the Effect of Pruning on Adversarial Robustness

no code implementations10 Aug 2021 Artur Jordao, Helio Pedrini

However, studies have shown the potential of pruning as a form of regularization, which reduces overfitting and improves generalization.

Adversarial Robustness

Stage-Wise Neural Architecture Search

2 code implementations23 Apr 2020 Artur Jordao, Fernando Akio, Maiko Lie, William Robson Schwartz

Motivated by this, we propose a NAS approach to efficiently design accurate and low-cost convolutional architectures and demonstrate that an efficient strategy for designing these architectures is to learn the depth stage-by-stage.

Neural Architecture Search

Covariance-free Partial Least Squares: An Incremental Dimensionality Reduction Method

2 code implementations5 Oct 2019 Artur Jordao, Maiko Lie, Victor Hugo Cunha de Melo, William Robson Schwartz

Dimensionality reduction plays an important role in computer vision problems since it reduces computational cost and is often capable of yielding more discriminative data representation.

Computational Efficiency Dimensionality Reduction +4

Pruning Deep Neural Networks using Partial Least Squares

1 code implementation17 Oct 2018 Artur Jordao, Ricardo Kloss, Fernando Yamada, William Robson Schwartz

Finally, we show that the proposed method achieves the highest FLOPs reduction and the smallest drop in accuracy when compared to state-of-the-art pruning approaches.

feature selection

Human Activity Recognition Based on Wearable Sensor Data: A Standardization of the State-of-the-Art

1 code implementation13 Jun 2018 Artur Jordao, Antonio C. Nazare Jr., Jessica Sena, William Robson Schwartz

Inspired by this, we conduct an extensive set of experiments that analyze different sample generation processes and validation protocols to indicate the vulnerable points in human activity recognition based on wearable sensor data.

Human Activity Recognition Image Classification +2

A Content-Based Late Fusion Approach Applied to Pedestrian Detection

no code implementations8 Jun 2018 Jessica Sena, Artur Jordao, William Robson Schwartz

We propose a novel method called Content-Based Spatial Consensus (CSBC), which, in addition to relying on spatial consensus, considers the content of the detection windows to learn a weighted-fusion of pedestrian detectors.

Pedestrian Detection

Latent hypernet: Exploring all Layers from Convolutional Neural Networks

no code implementations7 Nov 2017 Artur Jordao, Ricardo Kloss, William Robson Schwartz

To demonstrate the robustness and accuracy of the LHN, we evaluate it using four different networks architectures in five publicly available HAR datasets based on wearable sensors, which vary in the sampling rate and number of activities.

Human Activity Recognition

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