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We present a state-of-the-art end-to-end Automatic Speech Recognition (ASR) model. We learn to listen and write characters with a joint Connectionist Temporal Classification (CTC) and attention-based encoder-decoder network. The encoder is…

Computation and Language · Computer Science 2017-06-12 Takaaki Hori , Shinji Watanabe , Yu Zhang , William Chan

We investigate the usage of convolutional neural networks (CNNs) for the slot filling task in spoken language understanding. We propose a novel CNN architecture for sequence labeling which takes into account the previous context words with…

Computation and Language · Computer Science 2016-06-27 Ngoc Thang Vu

Time series classification is a critical task in various domains, such as finance, healthcare, and sensor data analysis. Unsupervised contrastive learning has garnered significant interest in learning effective representations from time…

Machine Learning · Computer Science 2025-03-24 Huili Cai , Xiang Zhang , Xiaofeng Liu

Recent end-to-end Automatic Speech Recognition (ASR) systems demonstrated the ability to outperform conventional hybrid DNN/ HMM ASR. Aside from architectural improvements in those systems, those models grew in terms of depth, parameters…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-06 Ludwig Kürzinger , Dominik Winkelbauer , Lujun Li , Tobias Watzel , Gerhard Rigoll

We consider a semantic communication system for speech signals, named DeepSC-S. Motivated by the breakthroughs in deep learning (DL), we make an effort to recover the transmitted speech signals in the semantic communication systems, which…

Audio and Speech Processing · Electrical Eng. & Systems 2021-09-09 Zhenzi Weng , Zhijin Qin , Geoffrey Ye Li

End-to-end approaches open a new way for more accurate and efficient spoken language understanding (SLU) systems by alleviating the drawbacks of traditional pipeline systems. Previous works exploit textual information for an SLU model via…

Computation and Language · Computer Science 2021-06-11 Seongbin Kim , Gyuwan Kim , Seongjin Shin , Sangmin Lee

We formulate long-context language modeling as a problem in continual learning rather than architecture design. Under this formulation, we only use a standard architecture -- a Transformer with sliding-window attention. However, our model…

Semi-supervised learning (SSL) is an active area of research which aims to utilize unlabelled data in order to improve the accuracy of speech recognition systems. The current study proposes a methodology for integration of two key ideas: 1)…

Computation and Language · Computer Science 2020-08-11 Prakhar Swarup , Debmalya Chakrabarty , Ashtosh Sapru , Hitesh Tulsiani , Harish Arsikere , Sri Garimella

Recently, end-to-end automatic speech recognition models based on connectionist temporal classification (CTC) have achieved impressive results, especially when fine-tuned from wav2vec2.0 models. Due to the conditional independence…

Computation and Language · Computer Science 2022-03-08 Keqi Deng , Songjun Cao , Yike Zhang , Long Ma , Gaofeng Cheng , Ji Xu , Pengyuan Zhang

While the community keeps promoting end-to-end models over conventional hybrid models, which usually are long short-term memory (LSTM) models trained with a cross entropy criterion followed by a sequence discriminative training criterion,…

Audio and Speech Processing · Electrical Eng. & Systems 2020-03-18 Jinyu Li , Rui Zhao , Eric Sun , Jeremy H. M. Wong , Amit Das , Zhong Meng , Yifan Gong

End-to-end (E2E) modeling is advantageous for automatic speech recognition (ASR) especially for Japanese since word-based tokenization of Japanese is not trivial, and E2E modeling is able to model character sequences directly. This paper…

Computation and Language · Computer Science 2021-06-10 Shigeki Karita , Yotaro Kubo , Michiel Adriaan Unico Bacchiani , Llion Jones

As speech-enabled devices such as smartphones and smart speakers become increasingly ubiquitous, there is growing interest in building automatic speech recognition (ASR) systems that can run directly on-device; end-to-end (E2E) speech…

End-to-end (E2E) models have shown to outperform state-of-the-art conventional models for streaming speech recognition [1] across many dimensions, including quality (as measured by word error rate (WER)) and endpointer latency [2]. However,…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-12 Bo Li , Anmol Gulati , Jiahui Yu , Tara N. Sainath , Chung-Cheng Chiu , Arun Narayanan , Shuo-Yiin Chang , Ruoming Pang , Yanzhang He , James Qin , Wei Han , Qiao Liang , Yu Zhang , Trevor Strohman , Yonghui Wu

Training the state-of-the-art speech-to-text (STT) models in mobile devices is challenging due to its limited resources relative to a server environment. In addition, these models are trained on generic datasets that are not exhaustive in…

Audio and Speech Processing · Electrical Eng. & Systems 2021-12-08 Zitha S , Raghavendra Rao Suresh , Pooja Rao , T. V. Prabhakar

Accurate sequence-to-sequence (seq2seq) alignment is critical for applications like medical speech analysis and language learning tools relying on automatic speech recognition (ASR). State-of-the-art end-to-end (E2E) ASR systems, such as…

Machine Learning · Computer Science 2025-11-24 Yacouba Kaloga , Shashi Kumar , Petr Motlicek , Ina Kodrasi

Spoken Language Understanding (SLU) typically comprises of an automatic speech recognition (ASR) followed by a natural language understanding (NLU) module. The two modules process signals in a blocking sequential fashion, i.e., the NLU…

Computation and Language · Computer Science 2020-12-01 Prashanth Gurunath Shivakumar , Naveen Kumar , Panayiotis Georgiou , Shrikanth Narayanan

Recently, end-to-end (E2E) automatic speech recognition (ASR) systems have garnered tremendous attention because of their great success and unified modeling paradigms in comparison to conventional hybrid DNN-HMM ASR systems. Despite the…

Audio and Speech Processing · Electrical Eng. & Systems 2020-05-19 Tien-Hong Lo , Shi-Yan Weng , Hsiu-Jui Chang , Berlin Chen

Intent Classification (IC) and Slot Labeling (SL) models, which form the basis of dialogue systems, often encounter noisy data in real-word environments. In this work, we investigate how robust IC/SL models are to noisy data. We collect and…

Computation and Language · Computer Science 2021-11-03 Sailik Sengupta , Jason Krone , Saab Mansour

End-to-End Speech Translation (E2E-ST) is the task of translating source speech directly into target text bypassing the intermediate transcription step. The representation discrepancy between the speech and text modalities has motivated…

Computation and Language · Computer Science 2025-09-24 Abderrahmane Issam , Yusuf Can Semerci , Jan Scholtes , Gerasimos Spanakis

This paper presents an end-to-end response selection model for Track 1 of the 7th Dialogue System Technology Challenges (DSTC7). This task focuses on selecting the correct next utterance from a set of candidates given a partial…

Computation and Language · Computer Science 2019-01-08 Jia-Chen Gu , Zhen-Hua Ling , Yu-Ping Ruan , Quan Liu