activity
20192023
most citedCAT: CRF-based ASR Toolkit

10 citations · 18 across the 12 of their papers we have counts for

collaborators

12 papers

eess.AS2023★ 2 cited

Exploring RWKV for Memory Efficient and Low Latency Streaming ASR

Keyu An, Shiliang Zhang

Recently, self-attention-based transformers and conformers have been introduced as alternatives to RNNs for ASR acoustic modeling. Nevertheless, the full-sequence attention mechani…

eess.AS2023

BAT: Boundary aware transducer for memory-efficient and low-latency ASR

Keyu An, Xian Shi, Shiliang Zhang

Recently, recurrent neural network transducer (RNN-T) gains increasing popularity due to its natural streaming capability as well as superior performance. Nevertheless, RNN-T train…

eess.AS2022

An Empirical Study of Language Model Integration for Transducer based Speech Recognition

Huahuan Zheng, Keyu An, Zhijian Ou +3

Utilizing text-only data with an external language model (ELM) in end-to-end RNN-Transducer (RNN-T) for speech recognition is challenging. Recently, a class of methods such as dens…

eess.AS2022

CUSIDE: Chunking, Simulating Future Context and Decoding for Streaming ASR

Keyu An, Huahuan Zheng, Zhijian Ou +3

History and future contextual information are known to be important for accurate acoustic modeling. However, acquiring future context brings latency for streaming ASR. In this pape…

eess.AS2022

Exploiting Single-Channel Speech for Multi-Channel End-to-End Speech Recognition: A Comparative Study

Keyu An, Ji Xiao, Zhijian Ou

Recently, the end-to-end training approach for multi-channel ASR has shown its effectiveness, which usually consists of a beamforming front-end and a recognition back-end. However,…

eess.AS2021

Exploiting Single-Channel Speech For Multi-channel End-to-end Speech Recognition

Keyu An, Zhijian Ou

Recently, the end-to-end training approach for neural beamformer-supported multi-channel ASR has shown its effectiveness in multi-channel speech recognition. However, the integrati…

cs.CL2021

Multilingual and crosslingual speech recognition using phonological-vector based phone embeddings

Chengrui Zhu, Keyu An, Huahuan Zheng +1

The use of phonological features (PFs) potentially allows language-specific phones to remain linked in training, which is highly desirable for information sharing for multilingual…

eess.AS2021★ 2 cited

Deformable TDNN with adaptive receptive fields for speech recognition

Keyu An, Yi Zhang, Zhijian Ou

Time Delay Neural Networks (TDNNs) are widely used in both DNN-HMM based hybrid speech recognition systems and recent end-to-end systems. Nevertheless, the receptive fields of TDNN…

cs.SD2020

The SLT 2021 children speech recognition challenge: Open datasets, rules and baselines

Fan Yu, Zhuoyuan Yao, Xiong Wang +6

Automatic speech recognition (ASR) has been significantly advanced with the use of deep learning and big data. However improving robustness, including achieving equally good perfor…

eess.AS2020★ 3 cited

Efficient Neural Architecture Search for End-to-end Speech Recognition via Straight-Through Gradients

Huahuan Zheng, Keyu An, Zhijian Ou

Neural Architecture Search (NAS), the process of automating architecture engineering, is an appealing next step to advancing end-to-end Automatic Speech Recognition (ASR), replacin…

eess.AS2020★ 1 cited

CAT: A CTC-CRF based ASR Toolkit Bridging the Hybrid and the End-to-end Approaches towards Data Efficiency and Low Latency

Keyu An, Hongyu Xiang, Zhijian Ou

In this paper, we present a new open source toolkit for speech recognition, named CAT (CTC-CRF based ASR Toolkit). CAT inherits the data-efficiency of the hybrid approach and the s…

cs.LG2019★ 10 cited

CAT: CRF-based ASR Toolkit

Keyu An, Hongyu Xiang, Zhijian Ou

In this paper, we present a new open source toolkit for automatic speech recognition (ASR), named CAT (CRF-based ASR Toolkit). A key feature of CAT is discriminative training in th…