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| Presentation | 2011-10-07 11:00 On an analysis of speaker dependency and speaker adaptation for the recognition of back-channeling expressions in dialog between an robot and persons with dementia Ken Sadohara, Hiroaki Kojima (AIST), Takuya Narita, Misato Nihei, Minoru Kamata (Univ. Tokyo), Shin-ichi Ohnaka, Yoshihiro Fujita (NEC), Rina Ishiwata, Takenobu Inoue (NRCD)  SP2011-62 WIT2011-44 |
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| Abstract | (in Japanese) | (See Japanese page) |
| (in English) | For the purpose of establishing a dialog between a robot and persons with dementia to remind information, this paper concerns classification of back-channeling expressions into 11 functional categories. An off-line experiment shows that the classification rate of 60% in average is yielded by a classifier using a language model for a fixed task domain and an acoustic model for elderly persons. It is also shown that the classification rate correlates negatively with the age and not with a scale of dementia. To improve the classification rate for persons older than 80 years, speaker adaptation is shown to be effective and increase the rate up to 70%. For binary classification into affirmative expression and the others, the classification rate is further improved up to 80%. |
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| Keyword | (in Japanese) | (See Japanese page) |
| (in English) | Dementia / Aged / Assistive Technology / Automatic Speech Recognition / Speaker Adaptation / / / | |
| Reference Info. | IEICE Tech. Rep., vol. 111, no. 225, SP2011-62, pp. 61-65, Oct. 2011. | |
| Paper # | SP2011-62 | |
| Date of Issue | 2011-09-29 (SP, WIT) | |
| ISSN | Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 | |
| Copyright and reproduction |
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034) | |
| Download PDF | SP2011-62 WIT2011-44 |
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| Conference Information | |
| Committee | WIT SP |
| Conference Date | 2011-10-06 - 2011-10-07 |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | TFT Bldg. |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | Welfare and speech processing, etc. |
| Paper Information | |
| Registration To | SP |
| Conference Code | 2011-10-WIT-SP |
| Language | Japanese |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On an analysis of speaker dependency and speaker adaptation for the recognition of back-channeling expressions in dialog between an robot and persons with dementia |
| Sub Title (in English) | |
| Keyword(1) | Dementia |
| Keyword(2) | Aged |
| Keyword(3) | Assistive Technology |
| Keyword(4) | Automatic Speech Recognition |
| Keyword(5) | Speaker Adaptation |
| Keyword(6) | |
| Keyword(7) | |
| Keyword(8) | |
| 1st Author's Name | Ken Sadohara |
| 1st Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) (AIST) |
| 2nd Author's Name | Hiroaki Kojima |
| 2nd Author's Affiliation | National Institute of Advanced Industrial Science and Technology (AIST) (AIST) |
| 3rd Author's Name | Takuya Narita |
| 3rd Author's Affiliation | University of Tokyo (Univ. Tokyo) |
| 4th Author's Name | Misato Nihei |
| 4th Author's Affiliation | University of Tokyo (Univ. Tokyo) |
| 5th Author's Name | Minoru Kamata |
| 5th Author's Affiliation | University of Tokyo (Univ. Tokyo) |
| 6th Author's Name | Shin-ichi Ohnaka |
| 6th Author's Affiliation | NEC Corpolation (NEC) |
| 7th Author's Name | Yoshihiro Fujita |
| 7th Author's Affiliation | NEC Corpolation (NEC) |
| 8th Author's Name | Rina Ishiwata |
| 8th Author's Affiliation | Research Institute of National Rehabilitation Center for Persons with Disabilities (NRCD) |
| 9th Author's Name | Takenobu Inoue |
| 9th Author's Affiliation | Research Institute of National Rehabilitation Center for Persons with Disabilities (NRCD) |
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| Speaker | Author-1 |
| Date Time | 2011-10-07 11:00:00 |
| Presentation Time | 30 minutes |
| Registration for | SP |
| Paper # | SP2011-62, WIT2011-44 |
| Volume (vol) | vol.111 |
| Number (no) | no.225(SP), no.226(WIT) |
| Page | pp.61-65 |
| #Pages | 5 |
| Date of Issue | 2011-09-29 (SP, WIT) |
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