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We address the problem of how to "obfuscate" texts by removing stylistic clues which can identify authorship, whilst preserving (as much as possible) the content of the text. In this paper we combine ideas from "generalised differential…

Cryptography and Security · Computer Science 2019-02-06 Natasha Fernandes , Mark Dras , Annabelle McIver

Solutions for defending against deepfake speech fall into two categories: proactive watermarking models and passive conventional deepfake detectors. While both address common threats, their differences in training, optimization, and…

Sound · Computer Science 2025-06-18 Chia-Hua Wu , Wanying Ge , Xin Wang , Junichi Yamagishi , Yu Tsao , Hsin-Min Wang

Automatic Speech Understanding (ASU) leverages the power of deep learning models for accurate interpretation of human speech, leading to a wide range of speech applications that enrich the human experience. However, training a robust ASU…

Sound · Computer Science 2023-06-14 Tiantian Feng , Digbalay Bose , Xuan Shi , Shrikanth Narayanan

Robust speaker recognition, including in the presence of malicious attacks, is becoming increasingly important and essential, especially due to the proliferation of several smart speakers and personal agents that interact with an…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-19 Arindam Jati , Chin-Cheng Hsu , Monisankha Pal , Raghuveer Peri , Wael AbdAlmageed , Shrikanth Narayanan

Speaker recognition is a popular topic in biometric authentication and many deep learning approaches have achieved extraordinary performances. However, it has been shown in both image and speech applications that deep neural networks are…

Sound · Computer Science 2020-05-25 Qing Wang , Pengcheng Guo , Lei Xie

In this paper, we consider the problem of responding to a count query (or any other integer-valued queries) evaluated on a dataset containing sensitive attributes. To protect the privacy of individuals in the dataset, a standard practice is…

Information Theory · Computer Science 2020-07-21 Parastoo Sadeghi , Shahab Asoodeh , Flavio du Pin Calmon

With the advancement of AI-based speech synthesis technologies such as Deep Voice, there is an increasing risk of voice spoofing attacks, including voice phishing and fake news, through unauthorized use of others' voices. Existing defenses…

Machine Learning · Computer Science 2025-05-20 Seungmin Kim , Sohee Park , Donghyun Kim , Jisu Lee , Daeseon Choi

In this article, one of the most important methods of steganography on VoIP called echo hiding is improved. This method has advantages in maintaining the statistical and perceptual characteristics of audio signals as well as security…

Cryptography and Security · Computer Science 2021-02-16 Haniyeh Rafiee , Mohammad Fakhredanesh

Deep neural networks (DNNs) have been widely and successfully adopted and deployed in various applications of speech recognition. Recently, a few works revealed that these models are vulnerable to backdoor attacks, where the adversaries can…

Sound · Computer Science 2023-07-18 Hanbo Cai , Pengcheng Zhang , Hai Dong , Yan Xiao , Stefanos Koffas , Yiming Li

The Machine Learning and Deep Learning Models require a lot of data for the training process, and in some scenarios, there might be some sensitive data, such as customer information involved, which the organizations might be hesitant to…

Machine Learning · Computer Science 2022-08-05 Syed Imtiaz Ahamed , Vadlamani Ravi

This study addresses the issues of privacy protection and efficiency in instruction fine-tuning of large-scale language models by proposing a parameter-efficient method that integrates differential privacy noise allocation with gradient…

Computation and Language · Computer Science 2025-12-09 Yulin Huang , Yaxuan Luan , Jinxu Guo , Xiangchen Song , Yuchen Liu

Speech recognition is an essential start ring of human-computer interaction, and recently, deep learning models have achieved excellent success in this task. However, when the model training and private data provider are always separated,…

Sound · Computer Science 2024-10-21 Wenhan Yao , Jiangkun Yang , Yongqiang He , Jia Liu , Weiping Wen

Differential privacy provides the first theoretical foundation with provable privacy guarantee against adversaries with arbitrary prior knowledge. The main idea to achieve differential privacy is to inject random noise into statistical…

Data Structures and Algorithms · Computer Science 2011-11-01 Yang D. Li , Zhenjie Zhang , Marianne Winslett , Yin Yang

Incremental learning is one paradigm to enable model building and updating at scale with streaming data. For end-to-end automatic speech recognition (ASR) tasks, the absence of human annotated labels along with the need for privacy…

Conventional adversarial defenses reduce classification accuracy whether or not a model is under attacks. Moreover, most of image processing based defenses are defeated due to the problem of obfuscated gradients. In this paper, we propose a…

Machine Learning · Computer Science 2020-05-19 MaungMaung AprilPyone , Hitoshi Kiya

Voice anonymization aims to conceal speaker identity and attributes while preserving intelligibility, but current evaluations rely almost exclusively on Equal Error Rate (EER) that obscures whether adversaries can mount high-precision…

Cryptography and Security · Computer Science 2026-01-27 Efthymios Tsaprazlis , Thanathai Lertpetchpun , Tiantian Feng , Sai Praneeth Karimireddy , Shrikanth Narayanan

Differential privacy is one of the methods to solve the problem of privacy protection in federated learning. Setting the same privacy budget for each round will result in reduced accuracy in training. The existing methods of the adjustment…

Cryptography and Security · Computer Science 2024-08-20 Zhiqiang Wang , Xinyue Yu , Qianli Huang , Yongguang Gong

With the growing adoption of privacy-preserving machine learning algorithms, such as Differentially Private Stochastic Gradient Descent (DP-SGD), training or fine-tuning models on private datasets has become increasingly prevalent. This…

Cryptography and Security · Computer Science 2025-03-05 Hong Guan , Lei Yu , Lixi Zhou , Li Xiong , Kanchan Chowdhury , Lulu Xie , Xusheng Xiao , Jia Zou

As intelligent sensing expands into high-privacy environments such as restrooms and changing rooms, the field faces a critical privacy-security paradox. Traditional RGB surveillance raises significant concerns regarding visual recording and…

Cryptography and Security · Computer Science 2026-02-02 Huan Song , Shuyu Tian , Junyi Hao , Cheng Yuan , Zhenyu Jia , Jiawei Shao , Xuelong Li

In recent years, with the development of cloud computing platforms, privacy-preserving methods for deep learning have become an urgent problem. NeuraCrypt is a private random neural network for privacy-preserving that allows data owners to…

Cryptography and Security · Computer Science 2023-01-13 Zheng Qi , AprilPyone MaungMaung , Hitoshi Kiya