Presentation 2006/12/14
The Speech-oriented Guidance System Takemaru and its Portability
Tobias CINCAREK, Hiromichi KAWANAMI, Manabu KIDA, Hiroshi SARUWATARI, Kiyohiro SHIKANO, Ryuichi NISHIMURA, Akinobu LEE,
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Abstract(in English) The development of the speech-oriented guidance system Takemaru is simulated using the data collected during the first two-years of regular operation. The relationship between the period of data collection, the number of speech inputs, number of words, language model perplexity, OOV rate, speech recognition performance and response accuracy is investigated. Based on this analysis, the relative importance of developing each system component can be assessed. Most important are efforts regarding the Q&A database followed by the acoustic and the language model. Moreover, a maximum in system performance seems to be reached after one year of data collection and overall improvement has the tendency to stagnate even if more data becomes available. Apart from that, the portability of the Takemaru system regarding a different environment, the Kitachan system installed at a local subway station, is investigated. Assuming a more realistic setting, only the data collected during twenty days is employed for system development. While the Takemaru ASR component shows a high portability, more efforts regarding the question and answer database have to be carried out in the future.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) Real Environment / Guidance System / Development Simulation / AM / LM / Q&A DB / Portability
Paper # NLC2006-58,SP2006-114
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Committee NLC
Conference Date 2006/12/14(1days)
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Paper Information
Registration To Natural Language Understanding and Models of Communication (NLC)
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) The Speech-oriented Guidance System Takemaru and its Portability
Sub Title (in English)
Keyword(1) Real Environment
Keyword(2) Guidance System
Keyword(3) Development Simulation
Keyword(4) AM
Keyword(5) LM
Keyword(6) Q&A DB
Keyword(7) Portability
1st Author's Name Tobias CINCAREK
1st Author's Affiliation Nara Institute of Science and Technology()
2nd Author's Name Hiromichi KAWANAMI
2nd Author's Affiliation Nara Institute of Science and Technology
3rd Author's Name Manabu KIDA
3rd Author's Affiliation Nara Institute of Science and Technology
4th Author's Name Hiroshi SARUWATARI
4th Author's Affiliation Nara Institute of Science and Technology
5th Author's Name Kiyohiro SHIKANO
5th Author's Affiliation Nara Institute of Science and Technology
6th Author's Name Ryuichi NISHIMURA
6th Author's Affiliation Faculty of Systems Engineering, Wakayama University
7th Author's Name Akinobu LEE
7th Author's Affiliation Dept. of CS, Nagoya Institute of Technology
Date 2006/12/14
Paper # NLC2006-58,SP2006-114
Volume (vol) vol.106
Number (no) 441
Page pp.pp.-
#Pages 6
Date of Issue