Paper Abstract and Keywords |
Presentation |
2007-11-28 14:30
Open-Vocabulary Spoken Utterance Retrieval Using Confusion Networks and Its Evaluation Takaaki Hori (NTT), Lee Hetherington, Timothy Hazen, James Glass (MIT) SP2007-93 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
We recently proposed an open-vocabulary spoken utterance retrieval method using confusion networks. In this paper, we particularly focus on its technical details and experimental results with a large-scale corpus of approximately 120 hours. Spoken utterance retrieval is a task to find utterances including a key word or key phrase as a query from a large spoken archive. The proposed method generates word or phone confusion networks from the archive, and translates them into the Inverted Index. By using this index structure, we can quickly retrieve a set of utterances including the query. To deal with out-of-vocabulary (OOV) words in queries and the archive, we apply phone confusion networks and combine them with word confusion networks. With this approach, we enables robust keyword matching for queries including both in-vocabulary and out-of-vocabulary words. In the retrieval experiments with speech recordings in MIT lecture corpus, our method using word-phone-combined confusion networks outperformed conventional indexing and retrieval methods. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Open Vocabulary / Utterance Retrieval / Confusion Network / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 107, no. 356, SP2007-93, pp. 43-48, Nov. 2007. |
Paper # |
SP2007-93 |
Date of Issue |
2007-11-21 (SP) |
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) |
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SP2007-93 |
Conference Information |
Committee |
SP |
Conference Date |
2007-11-28 - 2007-11-28 |
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(See Japanese page) |
Place (in English) |
Chiba Institute of Technology |
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etc. |
Paper Information |
Registration To |
SP |
Conference Code |
2007-11-SP |
Language |
Japanese |
Title (in Japanese) |
(See Japanese page) |
Sub Title (in Japanese) |
(See Japanese page) |
Title (in English) |
Open-Vocabulary Spoken Utterance Retrieval Using Confusion Networks and Its Evaluation |
Sub Title (in English) |
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Open Vocabulary |
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Utterance Retrieval |
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Confusion Network |
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1st Author's Name |
Takaaki Hori |
1st Author's Affiliation |
NTT Communication Science Laboratories (NTT) |
2nd Author's Name |
Lee Hetherington |
2nd Author's Affiliation |
Massachusettsu Institute of Technology (MIT) |
3rd Author's Name |
Timothy Hazen |
3rd Author's Affiliation |
Massachusettsu Institute of Technology (MIT) |
4th Author's Name |
James Glass |
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Massachusettsu Institute of Technology (MIT) |
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Speaker |
Author-1 |
Date Time |
2007-11-28 14:30:00 |
Presentation Time |
30 minutes |
Registration for |
SP |
Paper # |
SP2007-93 |
Volume (vol) |
vol.107 |
Number (no) |
no.356 |
Page |
pp.43-48 |
#Pages |
6 |
Date of Issue |
2007-11-21 (SP) |
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