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To accomplish the punctuation restoration task, most existing approaches focused on leveraging extra information (e.g., part-of-speech tags) or addressing the class imbalance problem. Recent works have widely applied the transformer-based…

Computation and Language · Computer Science 2022-04-12 Yangjun Wu , Kebin Fang , Yao Zhao

In recent years, transformer-based methods have achieved remarkable progress in medical image segmentation due to their superior ability to capture long-range dependencies. However, these methods typically suffer from two major limitations.…

Computer Vision and Pattern Recognition · Computer Science 2025-08-07 Zunhui Xia , Hongxing Li , Libin Lan

In this paper, we propose an encoder-decoder neural architecture (called Channelformer) to achieve improved channel estimation for orthogonal frequency-division multiplexing (OFDM) waveforms in downlink scenarios. The self-attention…

Signal Processing · Electrical Eng. & Systems 2023-02-10 Dianxin Luan , John Thompson

Text-to-speech (TTS) synthesis has seen renewed progress under the discrete modeling paradigm. Existing autoregressive approaches often rely on single-codebook representations, which suffer from significant information loss. Even with…

For real-world deployment of automatic speech recognition (ASR), the system is desired to be capable of fast inference while relieving the requirement of computational resources. The recently proposed end-to-end ASR system based on…

Audio and Speech Processing · Electrical Eng. & Systems 2021-02-17 Yosuke Higuchi , Hirofumi Inaguma , Shinji Watanabe , Tetsuji Ogawa , Tetsunori Kobayashi

The portrait matting task aims to extract an alpha matte with complete semantics and finely-detailed contours. In comparison to CNN-based approaches, transformers with self-attention module have a better capacity to capture long-range…

Computer Vision and Pattern Recognition · Computer Science 2023-12-04 Zitao Wang , Qiguang Miao , Peipei Zhao , Yue Xi

Supervised learning methods have shown effectiveness in estimating spatial acoustic parameters such as time difference of arrival, direct-to-reverberant ratio and reverberation time. However, they still suffer from the simulation-to-reality…

Sound · Computer Science 2024-09-10 Bing Yang , Xiaofei Li

For various speech-related tasks, confidence scores from a speech recogniser are a useful measure to assess the quality of transcriptions. In traditional hidden Markov model-based automatic speech recognition (ASR) systems, confidence…

Audio and Speech Processing · Electrical Eng. & Systems 2020-10-27 Qiujia Li , David Qiu , Yu Zhang , Bo Li , Yanzhang He , Philip C. Woodland , Liangliang Cao , Trevor Strohman

End-to-end speech recognition has become popular in recent years, since it can integrate the acoustic, pronunciation and language models into a single neural network. Among end-to-end approaches, attention-based methods have emerged as…

Sound · Computer Science 2020-06-03 Zhifu Gao , Shiliang Zhang , Ming Lei , Ian McLoughlin

With the proliferation of video platforms on the internet, recording musical performances by mobile devices has become commonplace. However, these recordings often suffer from degradation such as noise and reverberation, which negatively…

Sound · Computer Science 2023-08-25 Yunkee Chae , Junghyun Koo , Sungho Lee , Kyogu Lee

Recently, attention-based encoder-decoder (AED) end-to-end (E2E) models have drawn more and more attention in the field of automatic speech recognition (ASR). AED models, however, still have drawbacks when deploying in commercial…

Sound · Computer Science 2021-04-22 Zhichao Wang , Wenwen Yang , Pan Zhou , Wei Chen

The attention mechanism, a cornerstone of state-of-the-art neural models, faces computational hurdles in processing long sequences due to its quadratic complexity. Consequently, research efforts in the last few years focused on finding more…

Computation and Language · Computer Science 2024-02-21 Marco Gaido , Sara Papi , Matteo Negri , Luisa Bentivogli

Neural networks equipped with self-attention have parallelizable computation, light-weight structure, and the ability to capture both long-range and local dependencies. Further, their expressive power and performance can be boosted by using…

Computation and Language · Computer Science 2019-03-27 Tao Shen , Tianyi Zhou , Guodong Long , Jing Jiang , Chengqi Zhang

Recurrent neural network transducers (RNN-T) have been successfully applied in end-to-end speech recognition. However, the recurrent structure makes it difficult for parallelization . In this paper, we propose a self-attention transducer…

Audio and Speech Processing · Electrical Eng. & Systems 2020-02-25 Zhengkun Tian , Jiangyan Yi , Jianhua Tao , Ye Bai , Zhengqi Wen

Identifying multiple speakers without knowing where a speaker's voice is in a recording is a challenging task. This paper proposes a hierarchical network with transformer encoders and memory mechanism to address this problem. The proposed…

Sound · Computer Science 2020-11-02 Yanpei Shi , Mingjie Chen , Qiang Huang , Thomas Hain

End-to-end (E2E) systems have shown comparable performance to hybrid systems for automatic speech recognition (ASR). Word timings, as a by-product of ASR, are essential in many applications, especially for subtitling and computer-aided…

Audio and Speech Processing · Electrical Eng. & Systems 2023-06-14 Xianzhao Chen , Yist Y. Lin , Kang Wang , Yi He , Zejun Ma

We propose an approach to extract speaker embeddings that are robust to speaking style variations in text-independent speaker verification. Typically, speaker embedding extraction includes training a DNN for speaker classification and using…

Audio and Speech Processing · Electrical Eng. & Systems 2022-06-29 Amber Afshan , Abeer Alwan

The conversion from text to speech relies on the accurate mapping from linguistic to acoustic symbol sequences, for which current practice employs recurrent statistical models like recurrent neural networks. Despite the good performance of…

Sound · Computer Science 2018-11-07 Santiago Pascual , Antonio Bonafonte , Joan Serrà

Automatic speech recognition (ASR) systems often rely on autoregressive (AR) Transformer decoder architectures, which limit efficient inference parallelization due to their sequential nature. To this end, non-autoregressive (NAR) approaches…

Audio and Speech Processing · Electrical Eng. & Systems 2025-11-13 Tianzi Wang , Xurong Xie , Zengrui Jin , Mengzhe Geng , Jiajun Deng , Zhaoqing Li , Shoukang Hu , Shujie Hu , Guinan Li , Mingyu Cui , Helen Meng , Xunying Liu

Adjusting the latency, power, and accuracy of natural language understanding models is a desirable objective of an efficient architecture. This paper proposes an efficient Transformer architecture that adjusts the inference computational…

Computation and Language · Computer Science 2024-09-20 Sajjad Kachuee , Mohammad Sharifkhani