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Automatic speech recognition (ASR) systems often encounter difficulties in accurately recognizing rare words, leading to errors that can have a negative impact on downstream tasks such as keyword spotting, intent detection, and text…

Artificial Intelligence · Computer Science 2023-10-10 Jiajun He , Zekun Yang , Tomoki Toda

End-to-end (E2E) speech recognition architectures assemble all components of traditional speech recognition system into a single model. Although it simplifies ASR system, it introduces contextual ASR drawback: the E2E model has worse…

Computation and Language · Computer Science 2022-02-21 Zhengyi Zhang , Pan Zhou

End-to-end (E2E) automatic speech recognition (ASR) systems often have difficulty recognizing uncommon words, that appear infrequently in the training data. One promising method, to improve the recognition accuracy on such rare words, is to…

Computation and Language · Computer Science 2021-11-08 Feng-Ju Chang , Jing Liu , Martin Radfar , Athanasios Mouchtaris , Maurizio Omologo , Ariya Rastrow , Siegfried Kunzmann

This paper studies contextual biasing with Large Language Models (LLMs), where during second-pass rescoring additional contextual information is provided to a LLM to boost Automatic Speech Recognition (ASR) performance. We propose to…

Computation and Language · Computer Science 2023-09-25 Chuanneng Sun , Zeeshan Ahmed , Yingyi Ma , Zhe Liu , Lucas Kabela , Yutong Pang , Ozlem Kalinli

Context cues carry information which can improve multi-turn interactions in automatic speech recognition (ASR) systems. In this paper, we introduce a novel mechanism inspired by hyper-prompting to fuse textual context with acoustic…

Computation and Language · Computer Science 2024-01-17 Sergio Duarte-Torres , Arunasish Sen , Aman Rana , Lukas Drude , Alejandro Gomez-Alanis , Andreas Schwarz , Leif Rädel , Volker Leutnant

Despite the success of end-to-end automatic speech recognition (ASR) models, challenges persist in recognizing rare, out-of-vocabulary words - including named entities (NE) - and in adapting to new domains using only text data. This work…

Contextual biasing is an important and challenging task for end-to-end automatic speech recognition (ASR) systems, which aims to achieve better recognition performance by biasing the ASR system to particular context phrases such as person…

Computation and Language · Computer Science 2022-09-08 Xiaoqiang Wang , Yanqing Liu , Jinyu Li , Veljko Miljanic , Sheng Zhao , Hosam Khalil

End-to-end (E2E) automatic speech recognition (ASR) methods exhibit remarkable performance. However, since the performance of such methods is intrinsically linked to the context present in the training data, E2E-ASR methods do not perform…

Audio and Speech Processing · Electrical Eng. & Systems 2024-01-22 Yui Sudo , Muhammad Shakeel , Yosuke Fukumoto , Yifan Peng , Shinji Watanabe

Recently, attention-based encoder-decoder (AED) models have shown high performance for end-to-end automatic speech recognition (ASR) across several tasks. Addressing overconfidence in such models, in this paper we introduce the concept of…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-16 Timo Lohrenz , Patrick Schwarz , Zhengyang Li , Tim Fingscheidt

Language modeling (LM) for automatic speech recognition (ASR) does not usually incorporate utterance level contextual information. For some domains like voice assistants, however, additional context, such as the time at which an utterance…

Computation and Language · Computer Science 2021-06-04 Richard Diehl Martinez , Scott Novotney , Ivan Bulyko , Ariya Rastrow , Andreas Stolcke , Ankur Gandhe

Although contextualized automatic speech recognition (ASR) systems are commonly used to improve the recognition of uncommon words, their effectiveness is hindered by the inherent limitations of speech-text data availability. To address this…

Sound · Computer Science 2024-06-17 Naijun Zheng , Xucheng Wan , Kai Liu , Ziqing Du , Zhou Huan

Accurately finding the wrong words in the automatic speech recognition (ASR) hypothesis and recovering them well-founded is the goal of speech error correction. In this paper, we propose a non-autoregressive speech error correction method.…

Computation and Language · Computer Science 2024-07-19 Yuchun Shu , Bo Hu , Yifeng He , Hao Shi , Longbiao Wang , Jianwu Dang

The quality of automatic speech recognition (ASR) is critical to Dialogue Systems as ASR errors propagate to and directly impact downstream tasks such as language understanding (LU). In this paper, we propose multi-task neural approaches to…

Automatic speech recognition (ASR) is widely used in consumer electronics. ASR greatly improves the utility and accessibility of technology, but usually the output is only word sequences without punctuation. This can result in ambiguity in…

Computation and Language · Computer Science 2021-02-23 Andrew Silva , Barry-John Theobald , Nicholas Apostoloff

Neural contextual biasing effectively improves automatic speech recognition (ASR) for crucial phrases within a speaker's context, particularly those that are infrequent in the training data. This work proposes contextual text injection…

Computation and Language · Computer Science 2024-06-12 Zhong Meng , Zelin Wu , Rohit Prabhavalkar , Cal Peyser , Weiran Wang , Nanxin Chen , Tara N. Sainath , Bhuvana Ramabhadran

Connectionist Temporal Classification (CTC) models are popular for their balance between speed and performance for Automatic Speech Recognition (ASR). However, these CTC models still struggle in other areas, such as personalization towards…

Computation and Language · Computer Science 2023-07-04 Devang Kulshreshtha , Saket Dingliwal , Brady Houston , Sravan Bodapati

In this paper, we propose a simple and effective technique to allow for efficient self-supervised learning with bi-directional Transformers. Our approach is motivated by recent studies demonstrating that self-attention patterns in trained…

Computation and Language · Computer Science 2020-10-07 Ameet Deshpande , Karthik Narasimhan

Contextual ASR, which takes a list of bias terms as input along with audio, has drawn recent interest as ASR use becomes more widespread. We are releasing contextual biasing lists to accompany the Earnings21 dataset, creating a public…

Computation and Language · Computer Science 2022-09-07 Jennifer Drexler Fox , Natalie Delworth

In the realm of automatic speech recognition (ASR), robustness in noisy environments remains a significant challenge. Recent ASR models, such as Whisper, have shown promise, but their efficacy in noisy conditions can be further enhanced.…

Sound · Computer Science 2024-06-28 Yehoshua Dissen , Shiry Yonash , Israel Cohen , Joseph Keshet

Contextual automatic speech recognition (ASR) systems allow for recognizing out-of-vocabulary (OOV) words, such as named entities or rare words. However, it remains challenging due to limited training data and ambiguous or inconsistent…

Computation and Language · Computer Science 2025-09-03 Changsong Liu , Yizhou Peng , Eng Siong Chng