activity
20212026
most citedComparison of remote experiments using crowdsourcing and laboratory experiments on speech intelligibility

8 citations · 17 across the 16 of their papers we have counts for

collaborators

16 papers

cs.CL2026

Evaluating Large Language Models Abilities for Addressee, Turn-change, and Next Speaker Prediction in Meetings

Ryo Fukuda, Takatomo Kano, Siddhant Arora +7

We investigate turn-taking in multimodal multi-party conversations using large language models (LLMs). We construct an evaluation framework for three tasks: addressee detection, tu…

eess.AS2025

Microphone Array Geometry Independent Multi-Talker Distant ASR: NTT System for the DASR Task of the CHiME-8 Challenge

Naoyuki Kamo, Naohiro Tawara, Atsushi Ando +15

In this paper, we introduce a multi-talker distant automatic speech recognition (DASR) system we designed for the DASR task 1 of the CHiME-8 challenge. Our system performs speaker…

eess.AS2024

NTT Multi-Speaker ASR System for the DASR Task of CHiME-8 Challenge

Naoyuki Kamo, Naohiro Tawara, Atsushi Ando +15

We present a distant automatic speech recognition (DASR) system developed for the CHiME-8 DASR track. It consists of a diarization first pipeline. For diarization, we use end-to-en…

cs.CL2024

Sentence-wise Speech Summarization: Task, Datasets, and End-to-End Modeling with LM Knowledge Distillation

Kohei Matsuura, Takanori Ashihara, Takafumi Moriya +4

This paper introduces a novel approach called sentence-wise speech summarization (Sen-SSum), which generates text summaries from a spoken document in a sentence-by-sentence manner.…

eess.AS2024★ 2 cited

Applying LLMs for Rescoring N-best ASR Hypotheses of Casual Conversations: Effects of Domain Adaptation and Context Carry-over

Atsunori Ogawa, Naoyuki Kamo, Kohei Matsuura +5

Large language models (LLMs) have been successfully applied for rescoring automatic speech recognition (ASR) hypotheses. However, their ability to rescore ASR hypotheses of casual…

eess.AS2023

BLSTM-Based Confidence Estimation for End-to-End Speech Recognition

Atsunori Ogawa, Naohiro Tawara, Takatomo Kano +1

Confidence estimation, in which we estimate the reliability of each recognized token (e.g., word, sub-word, and character) in automatic speech recognition (ASR) hypotheses and dete…

eess.AS2023

Lattice Rescoring Based on Large Ensemble of Complementary Neural Language Models

Atsunori Ogawa, Naohiro Tawara, Marc Delcroix +1

We investigate the effectiveness of using a large ensemble of advanced neural language models (NLMs) for lattice rescoring on automatic speech recognition (ASR) hypotheses. Previou…

eess.AS2023

Iterative Shallow Fusion of Backward Language Model for End-to-End Speech Recognition

Atsunori Ogawa, Takafumi Moriya, Naoyuki Kamo +2

We propose a new shallow fusion (SF) method to exploit an external backward language model (BLM) for end-to-end automatic speech recognition (ASR). The BLM has complementary charac…

eess.AS2023

NTT speaker diarization system for CHiME-7: multi-domain, multi-microphone End-to-end and vector clustering diarization

Naohiro Tawara, Marc Delcroix, Atsushi Ando +1

This paper details our speaker diarization system designed for multi-domain, multi-microphone casual conversations. The proposed diarization pipeline uses weighted prediction error…

cs.CL2023★ 1 cited

Transfer Learning from Pre-trained Language Models Improves End-to-End Speech Summarization

Kohei Matsuura, Takanori Ashihara, Takafumi Moriya +4

End-to-end speech summarization (E2E SSum) directly summarizes input speech into easy-to-read short sentences with a single model. This approach is promising because it, in contras…

eess.AS2023★ 1 cited

Knowledge Distillation for Neural Transducer-based Target-Speaker ASR: Exploiting Parallel Mixture/Single-Talker Speech Data

Takafumi Moriya, Hiroshi Sato, Tsubasa Ochiai +7

Neural transducer (RNNT)-based target-speaker speech recognition (TS-RNNT) directly transcribes a target speaker's voice from a multi-talker mixture. It is a promising approach for…

eess.AS2023

Multi-Stream Extension of Variational Bayesian HMM Clustering (MS-VBx) for Combined End-to-End and Vector Clustering-based Diarization

Marc Delcroix, Naohiro Tawara, Mireia Diez +6

Combining end-to-end neural speaker diarization (EEND) with vector clustering (VC), known as EEND-VC, has gained interest for leveraging the strengths of both methods. EEND-VC esti…

cs.CL2023★ 2 cited

Leveraging Large Text Corpora for End-to-End Speech Summarization

Kohei Matsuura, Takanori Ashihara, Takafumi Moriya +4

End-to-end speech summarization (E2E SSum) is a technique to directly generate summary sentences from speech. Compared with the cascade approach, which combines automatic speech re…

cs.SD2022★ 2 cited

Effective data screening technique for crowdsourced speech intelligibility experiments: Evaluation with IRM-based speech enhancement

Ayako Yamamoto, Toshio Irino, Shoko Araki +4

It is essential to perform speech intelligibility (SI) experiments with human listeners in order to evaluate objective intelligibility measures for developing effective speech enha…

eess.AS2021★ 1 cited

Attention-based Multi-hypothesis Fusion for Speech Summarization

Takatomo Kano, Atsunori Ogawa, Marc Delcroix +1

Speech summarization, which generates a text summary from speech, can be achieved by combining automatic speech recognition (ASR) and text summarization (TS). With this cascade app…

eess.AS2021★ 8 cited

Comparison of remote experiments using crowdsourcing and laboratory experiments on speech intelligibility

Ayako Yamamoto, Toshio Irino, Kenichi Arai +4

Many subjective experiments have been performed to develop objective speech intelligibility measures, but the novel coronavirus outbreak has made it very difficult to conduct exper…