Search Results for author: Juan C. Pérez

Found 14 papers, 12 papers with code

Adaptive Guidance: Training-free Acceleration of Conditional Diffusion Models

1 code implementation19 Dec 2023 Angela Castillo, Jonas Kohler, Juan C. Pérez, Juan Pablo Pérez, Albert Pumarola, Bernard Ghanem, Pablo Arbeláez, Ali Thabet

Our findings provide insights into the efficiency of the conditional denoising process that contribute to more practical and swift deployment of text-conditioned diffusion models.

Denoising Neural Architecture Search

Enhancing Neural Rendering Methods with Image Augmentations

no code implementations15 Jun 2023 Juan C. Pérez, Sara Rojas, Jesus Zarzar, Bernard Ghanem

We found that introducing image augmentations during training presents challenges such as geometric and photometric inconsistencies for learning NRMs from images.

3D Reconstruction Neural Rendering +1

Revisiting Test Time Adaptation under Online Evaluation

1 code implementation10 Apr 2023 Motasem Alfarra, Hani Itani, Alejandro Pardo, Shyma Alhuwaider, Merey Ramazanova, Juan C. Pérez, Zhipeng Cai, Matthias Müller, Bernard Ghanem

To address this issue, we propose a more realistic evaluation protocol for TTA methods, where data is received in an online fashion from a constant-speed data stream, thereby accounting for the method's adaptation speed.

Test-time Adaptation

Certified Robustness in Federated Learning

1 code implementation6 Jun 2022 Motasem Alfarra, Juan C. Pérez, Egor Shulgin, Peter Richtárik, Bernard Ghanem

However, as in the single-node supervised learning setup, models trained in federated learning suffer from vulnerability to imperceptible input transformations known as adversarial attacks, questioning their deployment in security-related applications.

Federated Learning

3DeformRS: Certifying Spatial Deformations on Point Clouds

1 code implementation CVPR 2022 Gabriel Pérez S., Juan C. Pérez, Motasem Alfarra, Silvio Giancola, Bernard Ghanem

In this work, we propose 3DeformRS, a method to certify the robustness of point cloud Deep Neural Networks (DNNs) against real-world deformations.

Autonomous Driving

Towards Assessing and Characterizing the Semantic Robustness of Face Recognition

no code implementations10 Feb 2022 Juan C. Pérez, Motasem Alfarra, Ali Thabet, Pablo Arbeláez, Bernard Ghanem

We propose a methodology for assessing and characterizing the robustness of FRMs against semantic perturbations to their input.

Face Recognition

On the Robustness of Quality Measures for GANs

1 code implementation31 Jan 2022 Motasem Alfarra, Juan C. Pérez, Anna Frühstück, Philip H. S. Torr, Peter Wonka, Bernard Ghanem

Finally, we show that the FID can be robustified by simply replacing the standard Inception with a robust Inception.

Generalized Real-World Super-Resolution through Adversarial Robustness

1 code implementation25 Aug 2021 Angela Castillo, María Escobar, Juan C. Pérez, Andrés Romero, Radu Timofte, Luc van Gool, Pablo Arbeláez

Instead of learning a dataset-specific degradation, we employ adversarial attacks to create difficult examples that target the model's weaknesses.

Adversarial Robustness Super-Resolution

Towards Robust General Medical Image Segmentation

2 code implementations9 Jul 2021 Laura Daza, Juan C. Pérez, Pablo Arbeláez

The reliability of Deep Learning systems depends on their accuracy but also on their robustness against adversarial perturbations to the input data.

Image Classification Image Segmentation +3

Rethinking Clustering for Robustness

1 code implementation13 Jun 2020 Motasem Alfarra, Juan C. Pérez, Adel Bibi, Ali Thabet, Pablo Arbeláez, Bernard Ghanem

This paper studies how encouraging semantically-aligned features during deep neural network training can increase network robustness.

Clustering

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