Yasuhiro Katagiri


2014

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Japanese conversation corpus for training and evaluation of backchannel prediction model.
Hiroaki Noguchi | Yasuhiro Katagiri | Yasuharu Den
Proceedings of the Ninth International Conference on Language Resources and Evaluation (LREC'14)

In this paper, we propose an experimental method for building a specialized corpus for training and evaluating backchannel prediction models of spoken dialogue. To develop a backchannel prediction model using a machine learning technique, it is necessary to discriminate between the timings of the interlocutor ’s speech when more listeners commonly respond with backchannels and the timings when fewer listeners do so. The proposed corpus indicates the normative timings for backchannels in each speech with millisecond accuracy. In the proposed method, we first extracted each speech comprising a single turn from recorded conversation. Second, we presented these speeches as stimuli to 89 participants and asked them to respond by key hitting whenever they thought it appropriate to respond with a backchannel. In this way, we collected 28983 responses. Third, we applied the Gaussian mixture model to the temporal distribution of the responses and estimated the center of Gaussian distribution, that is, the backchannel relevance place (BRP), in each case. Finally, we synthesized 10 pairs of stereo speech stimuli and asked 19 participants to rate each on a 7-point scale of naturalness. The results show that backchannels inserted at BRPs were significantly higher than those in the original condition.

2010

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Proceedings of the SIGDIAL 2010 Conference
Yasuhiro Katagiri | Mikio Nakano
Proceedings of the SIGDIAL 2010 Conference

2008

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Implicit Proposal Filtering in Multi-Party Consensus-Building Conversations
Yasuhiro Katagiri | Yosuke Matsusaka | Yasuharu Den | Mika Enomoto | Masato Ishizaki | Katsuya Takanashi
Proceedings of the 9th SIGdial Workshop on Discourse and Dialogue

2007

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Aiduti in Japanese Multi-Party Design Conversations
Yasuhiro Katagiri
Proceedings of the Workshop on Embodied Language Processing

2003

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Turn-taking in Graphical Communication: an exploratory study
Atsue Takeoka | Atsushi Shimojima | Yasuhiro Katagiri
Proceedings of the Fourth SIGdial Workshop of Discourse and Dialogue

1986

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Translation by Understanding: A Machine Translation System LUTE
Hirosato Nomura | Shozo Naito | Yasuhiro Katagiri | Akira Shimazu
Coling 1986 Volume 1: The 11th International Conference on Computational Linguistics