activity
20182026
most citedMitigating Gradient-based Adversarial Attacks via Denoising and Compression

3 citations · 9 across the 10 of their papers we have counts for

collaborators

10 papers

cs.MM2026

Proactive Conversational Assistant for a Procedural Manual Task based on Audio and IMU

Rehana Mahfuz, Yinyi Guo, Erik Visser +1

Real-time conversational assistants for procedural manual tasks often depend on video input, which can be computationally expensive and compromise user privacy. For the first time,…

eess.AS2025

Aligning Audio Captions with Human Preferences

Kartik Hegde, Rehana Mahfuz, Yinyi Guo +1

Current audio captioning relies on supervised learning with paired audio-caption data, which is costly to curate and may not reflect human preferences in real-world scenarios. To a…

cs.MM2024★ 1 cited

Resource-Efficient Reference-Free Evaluation of Audio Captions

Rehana Mahfuz, Yinyi Guo, Erik Visser

To establish the trustworthiness of systems that automatically generate text captions for audio, images and video, existing reference-free metrics rely on large pretrained models w…

cs.CL2023

Parameter Efficient Audio Captioning With Faithful Guidance Using Audio-text Shared Latent Representation

Arvind Krishna Sridhar, Yinyi Guo, Erik Visser +1

There has been significant research on developing pretrained transformer architectures for multimodal-to-text generation tasks. Albeit performance improvements, such models are fre…

cs.MM2023

Detecting False Alarms and Misses in Audio Captions

Rehana Mahfuz, Yinyi Guo, Arvind Krishna Sridhar +1

Metrics to evaluate audio captions simply provide a score without much explanation regarding what may be wrong in case the score is low. Manual human intervention is needed to find…

cs.MM2022

Improving Audio Captioning Using Semantic Similarity Metrics

Rehana Mahfuz, Yinyi Guo, Erik Visser

Audio captioning quality metrics which are typically borrowed from the machine translation and image captioning areas measure the degree of overlap between predicted tokens and gol…

cs.CR2021★ 3 cited

Mitigating Gradient-based Adversarial Attacks via Denoising and Compression

Rehana Mahfuz, Rajeev Sahay, Aly El Gamal

Gradient-based adversarial attacks on deep neural networks pose a serious threat, since they can be deployed by adding imperceptible perturbations to the test data of any network,…

cs.LG2020★ 2 cited

Ensemble Noise Simulation to Handle Uncertainty about Gradient-based Adversarial Attacks

Rehana Mahfuz, Rajeev Sahay, Aly El Gamal

Gradient-based adversarial attacks on neural networks can be crafted in a variety of ways by varying either how the attack algorithm relies on the gradient, the network architectur…

cs.LG2019★ 2 cited

A Computationally Efficient Method for Defending Adversarial Deep Learning Attacks

Rajeev Sahay, Rehana Mahfuz, Aly El Gamal

The reliance on deep learning algorithms has grown significantly in recent years. Yet, these models are highly vulnerable to adversarial attacks, which introduce visually impercept…

cs.LG2018★ 1 cited

Combatting Adversarial Attacks through Denoising and Dimensionality Reduction: A Cascaded Autoencoder Approach

Rajeev Sahay, Rehana Mahfuz, Aly El Gamal

Machine Learning models are vulnerable to adversarial attacks that rely on perturbing the input data. This work proposes a novel strategy using Autoencoder Deep Neural Networks to…