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Federated learning enables collaborative training of machine learning models under strict privacy restrictions and federated text-to-speech aims to synthesize natural speech of multiple users with a few audio training samples stored in…

Audio and Speech Processing · Electrical Eng. & Systems 2023-05-23 Ziyue Jiang , Yi Ren , Ming Lei , Zhou Zhao

One of the key challenges in federated learning (FL) is local data distribution heterogeneity across clients, which may cause inconsistent feature spaces across clients. To address this issue, we propose a novel method FedFM, which guides…

Machine Learning · Computer Science 2022-10-17 Rui Ye , Zhenyang Ni , Chenxin Xu , Jianyu Wang , Siheng Chen , Yonina C. Eldar

Real-world complex acoustic environments especially the ones with a low signal-to-noise ratio (SNR) will bring tremendous challenges to a keyword spotting (KWS) system. Inspired by the recent advances of neural speech enhancement and…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-14 Shubo Lv , Xiong Wang , Sining Sun , Long Ma , Lei Xie

Numerous methods have been proposed to enhance Keyword Spotting (KWS) in adult speech, but children's speech presents unique challenges for KWS systems due to its distinct acoustic and linguistic characteristics. This paper introduces a…

Audio and Speech Processing · Electrical Eng. & Systems 2025-09-01 Subham Kutum , Abhijit Sinha , Hemant Kumar Kathania , Sudarsana Reddy Kadiri , Mahesh Chandra Govil

Federated learning (FL) addresses privacy concerns in training language models by enabling multiple clients to contribute to the training, without sending their data to others. However, non-IID (identically and independently distributed)…

Machine Learning · Computer Science 2025-01-28 Jong-Ik Park , Carlee Joe-Wong

The goal of this work is to train effective representations for keyword spotting via metric learning. Most existing works address keyword spotting as a closed-set classification problem, where both target and non-target keywords are…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Jaesung Huh , Minjae Lee , Heesoo Heo , Seongkyu Mun , Joon Son Chung

Keyword Spotting (KWS) models on embedded devices should adapt fast to new user-defined words without forgetting previous ones. Embedded devices have limited storage and computational resources, thus, they cannot save samples or update…

Sound · Computer Science 2023-07-25 Umberto Michieli , Pablo Peso Parada , Mete Ozay

Recent efforts have shown that neural text processing models are vulnerable to adversarial examples, but the nature of these examples is poorly understood. In this work, we show that adversarial attacks against CNN, LSTM and…

Computation and Language · Computer Science 2021-01-27 Maximilian Mozes , Pontus Stenetorp , Bennett Kleinberg , Lewis D. Griffin

Federated learning is a method of training models on private data distributed over multiple devices. To keep device data private, the global model is trained by only communicating parameters and updates which poses scalability challenges…

Large-scale federated learning (FL) over wireless multiple access channels (MACs) has emerged as a crucial learning paradigm with a wide range of applications. However, its widespread adoption is hindered by several major challenges,…

Machine Learning · Computer Science 2024-11-01 Vineet Sunil Gattani , Junshan Zhang , Gautam Dasarathy

Personalized federated learning (pFL) enables collaborative training among multiple clients to enhance the capability of customized local models. In pFL, clients may have heterogeneous (also known as non-IID) data, which poses a key…

Machine Learning · Computer Science 2023-12-01 Lingzhi Gao , Zexi Li , Yang Lu , Chao Wu

Federated clustering, an integral aspect of federated machine learning, enables multiple data sources to collaboratively cluster their data, maintaining decentralization and preserving privacy. In this paper, we introduce a novel federated…

Machine Learning · Computer Science 2023-11-20 Patrick Holzer , Tania Jacob , Shubham Kavane

In many speech-enabled human-machine interaction scenarios, user speech can overlap with the device playback audio. In these instances, the performance of tasks such as keyword-spotting (KWS) and device-directed speech detection (DDD) can…

Sound · Computer Science 2022-10-05 Samuele Cornell , Thomas Balestri , Thibaud Sénéchal

As a promising distributed machine learning paradigm, Federated Learning (FL) enables all the involved devices to train a global model collaboratively without exposing their local data privacy. However, for non-IID scenarios, the…

Machine Learning · Computer Science 2022-02-28 Ming Hu , Tian Liu , Zhiwei Ling , Zhihao Yue , Mingsong Chen

Personalized Federated Learning (PFL) is widely employed in IoT applications to handle high-volume, non-iid client data while ensuring data privacy. However, heterogeneous edge devices owned by clients may impose varying degrees of resource…

Machine Learning · Computer Science 2025-04-15 Ziru Niu , Hai Dong , A. K. Qin

Data duplication within large-scale corpora often impedes large language models' (LLMs) performance and privacy. In privacy-concerned federated learning scenarios, conventional deduplication methods typically rely on trusted third parties…

Cryptography and Security · Computer Science 2025-11-12 Pukang Ye , Junwei Luo , Xiaolei Dong , Yunbo Yang

Keyword Spotting (KWS) remains challenging to achieve the trade-off between small footprint and high accuracy. Recently proposed metric learning approaches improved the generalizability of models for the KWS task, and 1D-CNN based KWS…

Sound · Computer Science 2021-08-13 Li Wang , Rongzhi Gu , Nuo Chen , Yuexian Zou

Large language models (LLMs) have driven profound transformations in wireless networks. However, within wireless environments, the training of LLMs faces significant challenges related to security and privacy. Federated Learning (FL), with…

Machine Learning · Computer Science 2025-06-17 Feibo Jiang , Li Dong , Siwei Tu , Yubo Peng , Kezhi Wang , Kun Yang , Cunhua Pan , Dusit Niyato

Federated learning is an effective way of extracting insights from different user devices while preserving the privacy of users. However, new classes with completely unseen data distributions can stream across any device in a federated…

Machine Learning · Computer Science 2021-06-21 Gautham Krishna Gudur , Satheesh K. Perepu

In this work, we study practical heuristics to improve the performance of prefix-tree based algorithms for differentially private heavy hitter detection. Our model assumes each user has multiple data points and the goal is to learn as many…

Machine Learning · Computer Science 2023-07-24 Karan Chadha , Junye Chen , John Duchi , Vitaly Feldman , Hanieh Hashemi , Omid Javidbakht , Audra McMillan , Kunal Talwar