Title
Iterative Pseudo-Labeling for Speech Recognition
Abstract
Pseudo-labeling has recently shown promise in end-to-end automatic speech recognition (ASR). We study Iterative Pseudo-Labeling (IPL), a semi-supervised algorithm which efficiently performs multiple iterations of pseudo-labeling on unlabeled data as the acoustic model evolves. In particular, IPL fine-tunes an existing model at each iteration using both labeled data and a subset of unlabeled data. We study the main components of IPL: decoding with a language model and data augmentation. We then demonstrate the effectiveness of IPL by achieving state-of-the-art word-error rate on the Librispeech test sets in both standard and low-resource setting. We also study the effect of language models trained on different corpora to show IPL can effectively utilize additional text. Finally, we release a new large in-domain text corpus which does not overlap with the Librispeech training transcriptions to foster research in low-resource, semi-supervised ASR
Year
DOI
Venue
2020
10.21437/Interspeech.2020-1800
INTERSPEECH
DocType
Citations 
PageRank 
Conference
6
0.42
References 
Authors
0
6
Name
Order
Citations
PageRank
Qiantong Xu1347.42
Tatiana Likhomanenko2245.47
Jacob Kahn3202.38
Awni Y. Hannun451727.54
Synnaeve Gabriel5215.12
Ronan Collobert64002308.61