Search Results for author: Wael AbdAlmageed

Found 15 papers, 6 papers with code

ManiFPT: Defining and Analyzing Fingerprints of Generative Models

no code implementations16 Feb 2024 Hae Jin Song, Mahyar Khayatkhoei, Wael AbdAlmageed

Recent works have shown that generative models leave traces of their underlying generative process on the generated samples, broadly referred to as fingerprints of a generative model, and have studied their utility in detecting synthetic images from real ones.

Unsupervised Multimodal Deepfake Detection Using Intra- and Cross-Modal Inconsistencies

no code implementations28 Nov 2023 Mulin Tian, Mahyar Khayatkhoei, Joe Mathai, Wael AbdAlmageed

Deepfake videos present an increasing threat to society with potentially negative impact on criminal justice, democracy, and personal safety and privacy.

DeepFake Detection Face Swapping

SABAF: Removing Strong Attribute Bias from Neural Networks with Adversarial Filtering

1 code implementation13 Nov 2023 Jiazhi Li, Mahyar Khayatkhoei, Jiageng Zhu, Hanchen Xie, Mohamed E. Hussein, Wael AbdAlmageed

To that end, in this work, we mathematically and empirically reveal the limitation of existing attribute bias removal methods in presence of strong bias and propose a new method that can mitigate this limitation.

Attribute

Information-Theoretic Bounds on The Removal of Attribute-Specific Bias From Neural Networks

1 code implementation8 Oct 2023 Jiazhi Li, Mahyar Khayatkhoei, Jiageng Zhu, Hanchen Xie, Mohamed E. Hussein, Wael AbdAlmageed

Ensuring a neural network is not relying on protected attributes (e. g., race, sex, age) for predictions is crucial in advancing fair and trustworthy AI.

Attribute

Emergent Asymmetry of Precision and Recall for Measuring Fidelity and Diversity of Generative Models in High Dimensions

1 code implementation16 Jun 2023 Mahyar Khayatkhoei, Wael AbdAlmageed

Precision and Recall are two prominent metrics of generative performance, which were proposed to separately measure the fidelity and diversity of generative models.

Trojan Model Detection Using Activation Optimization

no code implementations8 Jun 2023 Mohamed E. Hussein, Sudharshan Subramaniam Janakiraman, Wael AbdAlmageed

TRIGS delivers the best performance on the new dataset, surpassing the baseline methods by a large margin.

A Critical View of Vision-Based Long-Term Dynamics Prediction Under Environment Misalignment

1 code implementation12 May 2023 Hanchen Xie, Jiageng Zhu, Mahyar Khayatkhoei, Jiazhi Li, Mohamed E. Hussein, Wael AbdAlmageed

In this paper, we investigate two challenging conditions for environment misalignment: Cross-Domain and Cross-Context by proposing four datasets that are designed for these challenges: SimB-Border, SimB-Split, BlenB-Border, and BlenB-Split.

Region Proposal

MONet: Multi-scale Overlap Network for Duplication Detection in Biomedical Images

no code implementations19 Jul 2022 Ekraam Sabir, Soumyaroop Nandi, Wael AbdAlmageed, Prem Natarajan

Manipulation of biomedical images to misrepresent experimental results has plagued the biomedical community for a while.

Learning Robust Representations Of Generative Models Using Set-Based Artificial Fingerprints

no code implementations4 Jun 2022 Hae Jin Song, Wael AbdAlmageed

We then improve the stability and attributability of the fingerprints by proposing a new learning method based on set-encoding and contrastive training.

Misinformation

Do-Operation Guided Causal Representation Learning with Reduced Supervision Strength

no code implementations3 Jun 2022 Jiageng Zhu, Hanchen Xie, Wael AbdAlmageed

Causal representation learning has been proposed to encode relationships between factors presented in the high dimensional data.

Representation Learning

Attack-Agnostic Adversarial Detection

no code implementations1 Jun 2022 Jiaxin Cheng, Mohamed Hussein, Jay Billa, Wael AbdAlmageed

The growing number of adversarial attacks in recent years gives attackers an advantage over defenders, as defenders must train detectors after knowing the types of attacks, and many models need to be maintained to ensure good performance in detecting any upcoming attacks.

Adversarial Attack Detection Anomaly Detection

Introducing the DOME Activation Functions

no code implementations30 Sep 2021 Mohamed E. Hussein, Wael AbdAlmageed

The function can also be extended to the case of multi-class classification, and used as an alternative to the standard softmax function.

Binary Classification Multi-class Classification

BioFors: A Large Biomedical Image Forensics Dataset

1 code implementation ICCV 2021 Ekraam Sabir, Soumyaroop Nandi, Wael AbdAlmageed, Prem Natarajan

Our results and analysis show that existing algorithms developed on common computer vision datasets are not robust when applied to biomedical images, validating that more research is required to address the unique challenges of biomedical image forensics.

Benchmarking Image Forensics +1

MEG: Multi-Evidence GNN for Multimodal Semantic Forensics

no code implementations23 Nov 2020 Ekraam Sabir, Ayush Jaiswal, Wael AbdAlmageed, Prem Natarajan

The problem setup requires algorithms to perform multimodal semantic forensics to authenticate a query multimedia package using a reference dataset of potentially related packages as evidences.

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