Title
DYNAMIC CURRICULUM LEARNING VIA DATA PARAMETERS FOR NOISE ROBUST KEYWORD SPOTTING
Abstract
We propose dynamic curriculum learning via data parameters for noise robust keyword spotting. Data parameter learning has recently been introduced for image processing, where weight parameters, so-called data parameters, for target classes and instances are introduced and optimized along with model parameters. The data parameters scale logits and control importance over classes and instances during training, which enables automatic curriculum learning without additional annotations for training data. Similarly, in this paper, we propose using this curriculum learning approach for acoustic modeling, and train an acoustic model on clean and noisy utterances with the data parameters. The proposed approach automatically learns the difficulty of the classes and instances, e.g. due to low speech to noise ratio (SNR), in the gradient descent optimization and performs curriculum learning. This curriculum learning leads to overall improvement of the accuracy of the acoustic model. We evaluate the effectiveness of the proposed approach on a keyword spotting task. Experimental results show 7.7% relative reduction in false reject ratio with the data parameters compared to a baseline model which is simply trained on the multiconditioned dataset.
Year
DOI
Venue
2021
10.1109/ICASSP39728.2021.9414501
2021 IEEE INTERNATIONAL CONFERENCE ON ACOUSTICS, SPEECH AND SIGNAL PROCESSING (ICASSP 2021)
Keywords
DocType
Citations 
Noise robustness, acoustic modeling, keyword spotting, curriculum learning
Conference
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Takuya Higuchi19510.22
Shreyas Saxena2322.87
Mehrez Souden300.34
Tien Dung Tran400.34
Masood Delfarah581.23
Chandra Dhir612.05