Gabriele Picco, Lam Thanh Hoang, et al.
EMNLP 2021
Data privacy and protection is a crucial issue for any automatic speech recognition (ASR) service provider when dealing with clients. In this paper, we investigate federated acoustic modeling using data from multiple clients. A client's data is stored on a local data server and the clients communicate only model parameters with a central server, and not their data. The communication happens infrequently to reduce the communication cost. To mitigate the non-iid issue, client adaptive federated training (CAFT) is proposed to canonicalize data across clients. The experiments are carried out on 1,150 hours of speech data from multiple domains. Hybrid LSTM acoustic models are trained via federated learning and their performance is compared to traditional centralized acoustic model training. The experimental results demonstrate the effectiveness of the proposed federated acoustic modeling strategy. We also show that CAFT can further improve the performance of the federated acoustic model.
Gabriele Picco, Lam Thanh Hoang, et al.
EMNLP 2021
Inkit Padhi, Yair Schiff, et al.
ICASSP 2021
Elliot Nelson, Debarun Bhattacharjya, et al.
UAI 2022
Murali Karthick Baskar, Lukáš Burget, et al.
ICASSP 2021