Search Results for author: Sonal Joshi

Found 6 papers, 0 papers with code

Unraveling Adversarial Examples against Speaker Identification -- Techniques for Attack Detection and Victim Model Classification

no code implementations29 Feb 2024 Sonal Joshi, Thomas Thebaud, Jesús Villalba, Najim Dehak

In this paper, we propose a method to detect the presence of adversarial examples, i. e., a binary classifier distinguishing between benign and adversarial examples.

Adversarial Attack Classification +1

AdvEst: Adversarial Perturbation Estimation to Classify and Detect Adversarial Attacks against Speaker Identification

no code implementations8 Apr 2022 Sonal Joshi, Saurabh Kataria, Jesus Villalba, Najim Dehak

Building on our previous work that used representation learning to classify and detect adversarial attacks, we propose an improvement to it using AdvEst, a method to estimate adversarial perturbation.

Representation Learning Speaker Identification

Representation Learning to Classify and Detect Adversarial Attacks against Speaker and Speech Recognition Systems

no code implementations9 Jul 2021 Jesús Villalba, Sonal Joshi, Piotr Żelasko, Najim Dehak

Also, representations trained to classify attacks against speaker identification can be used also to classify attacks against speaker verification and speech recognition.

Representation Learning Speaker Identification +4

Adversarial Attacks and Defenses for Speech Recognition Systems

no code implementations31 Mar 2021 Piotr Żelasko, Sonal Joshi, Yiwen Shao, Jesus Villalba, Jan Trmal, Najim Dehak, Sanjeev Khudanpur

We investigate two threat models: a denial-of-service scenario where fast gradient-sign method (FGSM) or weak projected gradient descent (PGD) attacks are used to degrade the model's word error rate (WER); and a targeted scenario where a more potent imperceptible attack forces the system to recognize a specific phrase.

Adversarial Robustness Automatic Speech Recognition +2

Study of Pre-processing Defenses against Adversarial Attacks on State-of-the-art Speaker Recognition Systems

no code implementations22 Jan 2021 Sonal Joshi, Jesús Villalba, Piotr Żelasko, Laureano Moro-Velázquez, Najim Dehak

Such attacks pose severe security risks, making it vital to deep-dive and understand how much the state-of-the-art SR systems are vulnerable to these attacks.

Speaker Recognition

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