Self-consistent context aware conformer transducer for speech recognition

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Hauptverfasser: Kolokolov, Konstantin, Pekichev, Pavel, Raghunathan, Karthik
Format: Preprint
Veröffentlicht: 2024
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author Kolokolov, Konstantin
Pekichev, Pavel
Raghunathan, Karthik
author_facet Kolokolov, Konstantin
Pekichev, Pavel
Raghunathan, Karthik
contents We introduce a novel neural network module that adeptly handles recursive data flow in neural network architectures. At its core, this module employs a self-consistent approach where a set of recursive equations is solved iteratively, halting when the difference between two consecutive iterations falls below a defined threshold. Leveraging this mechanism, we construct a new neural network architecture, an extension of the conformer transducer, which enriches automatic speech recognition systems with a stream of contextual information. Our method notably improves the accuracy of recognizing rare words without adversely affecting the word error rate for common vocabulary. We investigate the improvement in accuracy for these uncommon words using our novel model, both independently and in conjunction with shallow fusion with a context language model. Our findings reveal that the combination of both approaches can improve the accuracy of detecting rare words by as much as 4.5 times. Our proposed self-consistent recursive methodology is versatile and adaptable, compatible with many recently developed encoders, and has the potential to drive model improvements in speech recognition and beyond.
format Preprint
id arxiv_https___arxiv_org_abs_2402_06592
institution arXiv
publishDate 2024
record_format arxiv
spellingShingle Self-consistent context aware conformer transducer for speech recognition
Kolokolov, Konstantin
Pekichev, Pavel
Raghunathan, Karthik
Computation and Language
Sound
Audio and Speech Processing
We introduce a novel neural network module that adeptly handles recursive data flow in neural network architectures. At its core, this module employs a self-consistent approach where a set of recursive equations is solved iteratively, halting when the difference between two consecutive iterations falls below a defined threshold. Leveraging this mechanism, we construct a new neural network architecture, an extension of the conformer transducer, which enriches automatic speech recognition systems with a stream of contextual information. Our method notably improves the accuracy of recognizing rare words without adversely affecting the word error rate for common vocabulary. We investigate the improvement in accuracy for these uncommon words using our novel model, both independently and in conjunction with shallow fusion with a context language model. Our findings reveal that the combination of both approaches can improve the accuracy of detecting rare words by as much as 4.5 times. Our proposed self-consistent recursive methodology is versatile and adaptable, compatible with many recently developed encoders, and has the potential to drive model improvements in speech recognition and beyond.
title Self-consistent context aware conformer transducer for speech recognition
topic Computation and Language
Sound
Audio and Speech Processing
url https://arxiv.org/abs/2402.06592