activity
20182024
most citedAn Investigation of End-to-End Multichannel Speech Recognition for Reverberant and Mismatch Conditions

17 citations · 34 across the 15 of their papers we have counts for

collaborators

15 papers

eess.AS2024

LV-CTC: Non-autoregressive ASR with CTC and latent variable models

Yuya Fujita, Shinji Watanabe, Xuankai Chang +1

Non-autoregressive (NAR) models for automatic speech recognition (ASR) aim to achieve high accuracy and fast inference by simplifying the autoregressive (AR) generation process of…

cs.SD2023

HuBERTopic: Enhancing Semantic Representation of HuBERT through Self-supervision Utilizing Topic Model

Takashi Maekaku, Jiatong Shi, Xuankai Chang +2

Recently, the usefulness of self-supervised representation learning (SSRL) methods has been confirmed in various downstream tasks. Many of these models, as exemplified by HuBERT an…

cs.CL2023

Cross-Modal Multi-Tasking for Speech-to-Text Translation via Hard Parameter Sharing

Brian Yan, Xuankai Chang, Antonios Anastasopoulos +2

Recent works in end-to-end speech-to-text translation (ST) have proposed multi-tasking methods with soft parameter sharing which leverage machine translation (MT) data via secondar…

cs.CL2023★ 2 cited

Exploring Speech Recognition, Translation, and Understanding with Discrete Speech Units: A Comparative Study

Xuankai Chang, Brian Yan, Kwanghee Choi +14

Speech signals, typically sampled at rates in the tens of thousands per second, contain redundancies, evoking inefficiencies in sequence modeling. High-dimensional speech features…

cs.SD2023

Exploration of Efficient End-to-End ASR using Discretized Input from Self-Supervised Learning

Xuankai Chang, Brian Yan, Yuya Fujita +2

Self-supervised learning (SSL) of speech has shown impressive results in speech-related tasks, particularly in automatic speech recognition (ASR). While most methods employ the out…

cs.CL2022

Align, Write, Re-order: Explainable End-to-End Speech Translation via Operation Sequence Generation

Motoi Omachi, Brian Yan, Siddharth Dalmia +2

The black-box nature of end-to-end speech translation (E2E ST) systems makes it difficult to understand how source language inputs are being mapped to the target language. To solve…

cs.SD2022★ 1 cited

End-to-End Integration of Speech Recognition, Speech Enhancement, and Self-Supervised Learning Representation

Xuankai Chang, Takashi Maekaku, Yuya Fujita +1

This work presents our end-to-end (E2E) automatic speech recognition (ASR) model targetting at robust speech recognition, called Integraded speech Recognition with enhanced speech…

eess.AS2021★ 7 cited

A Comparative Study on Non-Autoregressive Modelings for Speech-to-Text Generation

Yosuke Higuchi, Nanxin Chen, Yuya Fujita +6

Non-autoregressive (NAR) models simultaneously generate multiple outputs in a sequence, which significantly reduces the inference speed at the cost of accuracy drop compared to aut…

eess.AS2021★ 1 cited

Streaming End-to-End ASR based on Blockwise Non-Autoregressive Models

Tianzi Wang, Yuya Fujita, Xuankai Chang +1

Non-autoregressive (NAR) modeling has gained more and more attention in speech processing. With recent state-of-the-art attention-based automatic speech recognition (ASR) structure…

cs.SD2021

Speech Representation Learning Combining Conformer CPC with Deep Cluster for the ZeroSpeech Challenge 2021

Takashi Maekaku, Xuankai Chang, Yuya Fujita +3

We present a system for the Zero Resource Speech Challenge 2021, which combines a Contrastive Predictive Coding (CPC) with deep cluster. In deep cluster, we first prepare pseudo-la…

eess.AS2020

Toward Streaming ASR with Non-Autoregressive Insertion-based Model

Yuya Fujita, Tianzi Wang, Shinji Watanabe +1

Neural end-to-end (E2E) models have become a promising technique to realize practical automatic speech recognition (ASR) systems. When realizing such a system, one important issue…

eess.AS2020★ 3 cited

Insertion-Based Modeling for End-to-End Automatic Speech Recognition

Yuya Fujita, Shinji Watanabe, Motoi Omachi +1

End-to-end (E2E) models have gained attention in the research field of automatic speech recognition (ASR). Many E2E models proposed so far assume left-to-right autoregressive gener…

eess.AS2019★ 1 cited

Attention-based ASR with Lightweight and Dynamic Convolutions

Yuya Fujita, Aswin Shanmugam Subramanian, Motoi Omachi +1

End-to-end (E2E) automatic speech recognition (ASR) with sequence-to-sequence models has gained attention because of its simple model training compared with conventional hidden Mar…

eess.AS2019★ 17 cited

An Investigation of End-to-End Multichannel Speech Recognition for Reverberant and Mismatch Conditions

Aswin Shanmugam Subramanian, Xiaofei Wang, Shinji Watanabe +3

Sequence-to-sequence (S2S) modeling is becoming a popular paradigm for automatic speech recognition (ASR) because of its ability to jointly optimize all the conventional ASR compon…

eess.AS2018★ 2 cited

Speaker Selective Beamformer with Keyword Mask Estimation

Yusuke Kida, Dung Tran, Motoi Omachi +2

This paper addresses the problem of automatic speech recognition (ASR) of a target speaker in background speech. The novelty of our approach is that we focus on a wakeup keyword, w…