PARAMETER ESTIMATING DEVICE, PARAMETER ESTIMATING METHOD, SPEECH RECOGNIZING DEVICE, SPEECH RECOGNIZING METHOD, AND PROGRAM

Title:

PARAMETER ESTIMATING DEVICE, PARAMETER ESTIMATING METHOD, SPEECH RECOGNIZING DEVICE, SPEECH RECOGNIZING METHOD, AND PROGRAM

Document Type and Number:

Japanese Patent JP2013160998

Kind Code:

A

Abstract:

To provide a parameter estimating technique which allows more robust parameter estimation to be achieved by obtaining an error in a smaller unit on the basis of a fine-grained error standard and minutely considering "a degree of incorrectness" within the incorrectness.

A parameter estimating device includes: a recording section for storing a probability finite state model containing a parameter for use in speech recognition, learning data, a correct state transition sequence which is a state transition sequence corresponding to a correct speech recognition result of the learning data, and an adjustment parameter which is a parameter for adjusting the probability finite state model; a recognizing section for generating a recognition state transition sequence which is a state transition sequence corresponding to a speech recognition result obtained as a result of performing speech recognition with respect to the learning data using the probability finite state model; a fine-grained error measure calculating section for calculating an error measure on the basis of a difference between the correct state transition sequence and the recognition state transition sequence; and a parameter estimating section for correcting the adjustment parameter according to the error measure.

Inventors:

KUBO YOTARO
HORI TAKAAKI
NAKAMURA ATSUSHI

Application Number:

JP2012024307A

Publication Date:

August 19, 2013

Filing Date:

February 07, 2012

Export Citation:

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Assignee:

NIPPON TELEGRAPH & TELEPHONE

International Classes:

G10L15/06; G10L15/14

Domestic Patent References:

JP2004279701A	2004-10-07
JP2010250161A	2010-11-04
JP2011164336A	2011-08-25

Foreign References:

WO2010019831A1

2010-02-18

Other References:

JPN6011028277; 大庭隆伸他: '"識別的誤り訂正学習における対立単語列と素性の選定"' 電子情報通信学会技術研究報告Ｖｏｌ．１０７，Ｎｏ．４０６, 200712, ｐｐ．２３５-２４０
JPN6014044390; Ｓ．ＫＡＰＡＤＩＡ，　ｅｔ　ａｌ．: '"ＭＭＩ　ＴＲＡＩＮＩＮＧ　ＦＯＲ　ＣＯＮＴＩＮＵＯＵＳ　ＰＨＯＮＥＭＥ　ＲＥＣＯＧＮＩＴＩＯＮ　ＯＮ　ＴＨＥ　ＴＩＭＩＴ　ＤＡＴＡＢＡＳＥ"' Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　１９９３　ＩＥＥＥ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｃｏｎｆｅｒｅｎｃｅ　ｏｎ　Ａｃｏｕｓｔｉｃｓ，　Ｓｐｅｅｃｈ　ａｎｄ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｉｎｇ　（ＩＣＶｏｌ．ＩＩ, 199304, ｐｐ．４９１-４９４
JPN6011028277; 大庭隆伸他: '"識別的誤り訂正学習における対立単語列と素性の選定"' 電子情報通信学会技術研究報告Ｖｏｌ．１０７，Ｎｏ．４０６, 200712, ｐｐ．２３５-２４０
JPN6014044390; Ｓ．ＫＡＰＡＤＩＡ，　ｅｔ　ａｌ．: '"ＭＭＩ　ＴＲＡＩＮＩＮＧ　ＦＯＲ　ＣＯＮＴＩＮＵＯＵＳ　ＰＨＯＮＥＭＥ　ＲＥＣＯＧＮＩＴＩＯＮ　ＯＮ　ＴＨＥ　ＴＩＭＩＴ　ＤＡＴＡＢＡＳＥ"' Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　１９９３　ＩＥＥＥ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｃｏｎｆｅｒｅｎｃｅ　ｏｎ　Ａｃｏｕｓｔｉｃｓ，　Ｓｐｅｅｃｈ　ａｎｄ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｉｎｇ　（ＩＣＶｏｌ．ＩＩ, 199304, ｐｐ．４９１-４９４
JPN6014044383; Ｄａｎｉｅｌ　ＰＯＶＥＹ，　ｅｔ　ａｌ．: '"ＭＩＮＩＭＵＭ　ＰＨＯＮＥ　ＥＲＲＯＲ　ＡＮＤ　Ｉ-ＳＭＯＯＴＨＩＮＧ　ＦＯＲ　ＩＭＰＲＯＶＥＤ　ＤＩＳＣＲＩＭＩＮＡＴＩＶＥ　ＴＲＡＩＮＩＮＧ"' Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　２００２　ＩＥＥＥ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｃｏｎｆｅｒｅｎｃｅ　ｏｎ　Ａｃｏｕｓｔｉｃｓ，　Ｓｐｅｅｃｈ，　ａｎｄ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｉｎｇ　（ＩＶｏｌ．Ｉ, 200205, ｐｐ．１０５-１０８
JPN6014044386; Ｄａｎｉｅｌ　ＰＯＶＥＹ，　ｅｔ　ａｌ．: '"ＢＯＯＳＴＥＤ　ＭＭＩ　ＦＯＲ　ＭＯＤＥＬ　ＡＮＤ　ＦＥＡＴＵＲＥ-ＳＰＡＣＥ　ＤＩＳＣＲＩＭＩＮＡＴＩＶＥ　ＴＲＡＩＮＩＮＧ"' Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　２００８　ＩＥＥＥ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｃｏｎｆｅｒｅｎｃｅ　ｏｎ　Ａｃｏｕｓｔｉｃｓ，　Ｓｐｅｅｃｈ　ａｎｄ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｉｎｇ　（ＩＣ , 200803, ｐｐ．４０５７-４０６０
JPN6014044388; Ｅｒｉｋ　ＭＣＤＥＲＭＯＴＴ，　ｅｔ　ａｌ．: '"ＤＩＳＣＲＩＭＩＮＡＴＩＶＥ　ＴＲＡＩＮＩＮＧ　ＢＡＳＥＤ　ＯＮ　ＡＮ　ＩＮＴＥＧＲＡＴＥＤ　ＶＩＥＷ　ＯＦ　ＭＰＥ　ＡＮＤ　ＭＭＩ　ＩＮ　ＭＡＲＧＩＮ　ＡＮＤ　ＥＲＲＯＲ　ＳＰＡＣＥ"' Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　２０１０　ＩＥＥＥ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｃｏｎｆｅｒｅｎｃｅ　ｏｎ　Ａｃｏｕｓｔｉｃｓ　Ｓｐｅｅｃｈ　ａｎｄ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｉｎｇ　（ＩＣＡ , 201003, ｐｐ．４８９４-４８９７
CSNG200800120035; 大庭隆伸他: '"識別的誤り訂正学習における対立単語列と素性の選定"' 電子情報通信学会技術研究報告Ｖｏｌ．１０７，Ｎｏ．４０６, 200712, ｐｐ．２３５-２４０
JPN6014044383; Ｄａｎｉｅｌ　ＰＯＶＥＹ，　ｅｔ　ａｌ．: '"ＭＩＮＩＭＵＭ　ＰＨＯＮＥ　ＥＲＲＯＲ　ＡＮＤ　Ｉ-ＳＭＯＯＴＨＩＮＧ　ＦＯＲ　ＩＭＰＲＯＶＥＤ　ＤＩＳＣＲＩＭＩＮＡＴＩＶＥ　ＴＲＡＩＮＩＮＧ"' Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　２００２　ＩＥＥＥ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｃｏｎｆｅｒｅｎｃｅ　ｏｎ　Ａｃｏｕｓｔｉｃｓ，　Ｓｐｅｅｃｈ，　ａｎｄ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｉｎｇ　（ＩＶｏｌ．Ｉ, 200205, ｐｐ．１０５-１０８
JPN6014044386; Ｄａｎｉｅｌ　ＰＯＶＥＹ，　ｅｔ　ａｌ．: '"ＢＯＯＳＴＥＤ　ＭＭＩ　ＦＯＲ　ＭＯＤＥＬ　ＡＮＤ　ＦＥＡＴＵＲＥ-ＳＰＡＣＥ　ＤＩＳＣＲＩＭＩＮＡＴＩＶＥ　ＴＲＡＩＮＩＮＧ"' Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　２００８　ＩＥＥＥ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｃｏｎｆｅｒｅｎｃｅ　ｏｎ　Ａｃｏｕｓｔｉｃｓ，　Ｓｐｅｅｃｈ　ａｎｄ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｉｎｇ　（ＩＣ , 200803, ｐｐ．４０５７-４０６０
JPN6014044388; Ｅｒｉｋ　ＭＣＤＥＲＭＯＴＴ，　ｅｔ　ａｌ．: '"ＤＩＳＣＲＩＭＩＮＡＴＩＶＥ　ＴＲＡＩＮＩＮＧ　ＢＡＳＥＤ　ＯＮ　ＡＮ　ＩＮＴＥＧＲＡＴＥＤ　ＶＩＥＷ　ＯＦ　ＭＰＥ　ＡＮＤ　ＭＭＩ　ＩＮ　ＭＡＲＧＩＮ　ＡＮＤ　ＥＲＲＯＲ　ＳＰＡＣＥ"' Ｐｒｏｃｅｅｄｉｎｇｓ　ｏｆ　ｔｈｅ　２０１０　ＩＥＥＥ　Ｉｎｔｅｒｎａｔｉｏｎａｌ　Ｃｏｎｆｅｒｅｎｃｅ　ｏｎ　Ａｃｏｕｓｔｉｃｓ　Ｓｐｅｅｃｈ　ａｎｄ　Ｓｉｇｎａｌ　Ｐｒｏｃｅｓｓｉｎｇ　（ＩＣＡ , 201003, ｐｐ．４８９４-４８９７
CSNG200800120035; 大庭隆伸他: '"識別的誤り訂正学習における対立単語列と素性の選定"' 電子情報通信学会技術研究報告Ｖｏｌ．１０７，Ｎｏ．４０６, 200712, ｐｐ．２３５-２４０

Attorney, Agent or Firm:

Naoki Nakao
Yukio Nakamura
Yoshimura Munehiro

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