Search Results for author: Hossein Aboutalebi

Found 15 papers, 3 papers with code

MAGID: An Automated Pipeline for Generating Synthetic Multi-modal Datasets

no code implementations5 Mar 2024 Hossein Aboutalebi, Hwanjun Song, Yusheng Xie, Arshit Gupta, Justin Sun, Hang Su, Igor Shalyminov, Nikolaos Pappas, Siffi Singh, Saab Mansour

Development of multimodal interactive systems is hindered by the lack of rich, multimodal (text, images) conversational data, which is needed in large quantities for LLMs.

Image-text matching Retrieval +1

DeepfakeArt Challenge: A Benchmark Dataset for Generative AI Art Forgery and Data Poisoning Detection

1 code implementation2 Jun 2023 Hossein Aboutalebi, Dayou Mao, Carol Xu, Alexander Wong

Motivated to address these key concerns to encourage responsible generative AI, we introduce the DeepfakeArt Challenge, a large-scale challenge benchmark dataset designed specifically to aid in the building of machine learning algorithms for generative AI art forgery and data poisoning detection.

Data Poisoning

COVIDx CXR-3: A Large-Scale, Open-Source Benchmark Dataset of Chest X-ray Images for Computer-Aided COVID-19 Diagnostics

no code implementations8 Jun 2022 Maya Pavlova, Tia Tuinstra, Hossein Aboutalebi, Andy Zhao, Hayden Gunraj, Alexander Wong

After more than two years since the beginning of the COVID-19 pandemic, the pressure of this crisis continues to devastate globally.

COVID-Net Biochem: An Explainability-driven Framework to Building Machine Learning Models for Predicting Survival and Kidney Injury of COVID-19 Patients from Clinical and Biochemistry Data

1 code implementation24 Apr 2022 Hossein Aboutalebi, Maya Pavlova, Mohammad Javad Shafiee, Adrian Florea, Andrew Hryniowski, Alexander Wong

Since the World Health Organization declared COVID-19 a pandemic in 2020, the global community has faced ongoing challenges in controlling and mitigating the transmission of the SARS-CoV-2 virus, as well as its evolving subvariants and recombinants.

Decision Making Injury Prediction

COVID-Net MLSys: Designing COVID-Net for the Clinical Workflow

no code implementations14 Sep 2021 Audrey G. Chung, Maya Pavlova, Hayden Gunraj, Naomi Terhljan, Alexander MacLean, Hossein Aboutalebi, Siddharth Surana, Andy Zhao, Saad Abbasi, Alexander Wong

As the COVID-19 pandemic continues to devastate globally, one promising field of research is machine learning-driven computer vision to streamline various parts of the COVID-19 clinical workflow.

BIG-bench Machine Learning

Membership Inference Attacks Against Temporally Correlated Data in Deep Reinforcement Learning

no code implementations8 Sep 2021 Maziar Gomrokchi, Susan Amin, Hossein Aboutalebi, Alexander Wong, Doina Precup

To address this gap, we propose an adversarial attack framework designed for testing the vulnerability of a state-of-the-art deep reinforcement learning algorithm to a membership inference attack.

Adversarial Attack Continuous Control +5

Residual Error: a New Performance Measure for Adversarial Robustness

no code implementations18 Jun 2021 Hossein Aboutalebi, Mohammad Javad Shafiee, Michelle Karg, Christian Scharfenberger, Alexander Wong

Motivated by this, this study presents the concept of residual error, a new performance measure for not only assessing the adversarial robustness of a deep neural network at the individual sample level, but also can be used to differentiate between adversarial and non-adversarial examples to facilitate for adversarial example detection.

Adversarial Robustness Image Classification

COVID-Net CXR-2: An Enhanced Deep Convolutional Neural Network Design for Detection of COVID-19 Cases from Chest X-ray Images

no code implementations14 May 2021 Maya Pavlova, Naomi Terhljan, Audrey G. Chung, Andy Zhao, Siddharth Surana, Hossein Aboutalebi, Hayden Gunraj, Ali Sabri, Amer Alaref, Alexander Wong

As the COVID-19 pandemic continues to devastate globally, the use of chest X-ray (CXR) imaging as a complimentary screening strategy to RT-PCR testing continues to grow given its routine clinical use for respiratory complaint.

Decision Making

COVID-Net CT-S: 3D Convolutional Neural Network Architectures for COVID-19 Severity Assessment using Chest CT Images

no code implementations4 May 2021 Hossein Aboutalebi, Saad Abbasi, Mohammad Javad Shafiee, Alexander Wong

The health and socioeconomic difficulties caused by the COVID-19 pandemic continues to cause enormous tensions around the world.

Management

COVID-Net CXR-S: Deep Convolutional Neural Network for Severity Assessment of COVID-19 Cases from Chest X-ray Images

no code implementations1 May 2021 Hossein Aboutalebi, Maya Pavlova, Mohammad Javad Shafiee, Ali Sabri, Amer Alaref, Alexander Wong

More specifically, we leveraged transfer learning to transfer representational knowledge gained from over 16, 000 CXR images from a multinational cohort of over 15, 000 patient cases into a custom network architecture for severity assessment.

Transfer Learning

Locally Persistent Exploration in Continuous Control Tasks with Sparse Rewards

1 code implementation26 Dec 2020 Susan Amin, Maziar Gomrokchi, Hossein Aboutalebi, Harsh Satija, Doina Precup

A major challenge in reinforcement learning is the design of exploration strategies, especially for environments with sparse reward structures and continuous state and action spaces.

Continuous Control

Self-Gradient Networks

no code implementations18 Nov 2020 Hossein Aboutalebi, Mohammad Javad Shafiee Alexander Wong

In this study, we hypothesize that part of the reason for the incredible effectiveness of adversarial attacks is their ability to implicitly tap into and exploit the gradient flow of a deep neural network.

Adversarial Defense

Vulnerability Under Adversarial Machine Learning: Bias or Variance?

no code implementations1 Aug 2020 Hossein Aboutalebi, Mohammad Javad Shafiee, Michelle Karg, Christian Scharfenberger, Alexander Wong

In this study, we investigate the effect of adversarial machine learning on the bias and variance of a trained deep neural network and analyze how adversarial perturbations can affect the generalization of a network.

BIG-bench Machine Learning

Learning Modular Safe Policies in the Bandit Setting with Application to Adaptive Clinical Trials

no code implementations4 Mar 2019 Hossein Aboutalebi, Doina Precup, Tibor Schuster

We present a regret bound for our approach and evaluate it empirically both on synthetic problems as well as on a dataset from the clinical trial literature.

Cannot find the paper you are looking for? You can Submit a new open access paper.