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Speech-based pronunciation symbol searching device, method and program using correction distance

  • US 9,817,889 B2
  • Filed: 12/02/2010
  • Issued: 11/14/2017
  • Est. Priority Date: 12/04/2009
  • Status: Expired due to Fees
First Claim
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1. A searching device, comprising:

  • circuitry configured to;

    subject input speech to speech recognition;

    match a pronunciation symbol string for search results and a recognition result pronunciation symbol string based on calculation of a correction distance, for each of a plurality of word strings for search results, wherein said plurality of word strings for search results are to be search results for word strings that correspond to said input speech,wherein said pronunciation symbol string for search results is an array of pronunciation symbols that express pronunciation of each of said plurality of word strings for search results, and each of said pronunciation symbols is a symbol that expresses pronunciation of a syllable or a phoneme,wherein said recognition result pronunciation symbol string is an array of pronunciation symbols that express pronunciation of speech recognition results of said input speech, andwherein said circuitry is configured to calculate said correction distance based on a relationship between a vector for search results which is a vector that expresses said pronunciation symbol string for search results, a recognition result vector which is a vector that expresses said recognition result pronunciation symbol string, and a square root of a value obtained by multiplication of a size of said vector for search results and a size of said recognition result vector; and

    output a search result word string which is a result of search for said word strings that correspond to said input speech from said plurality of word strings for search results, based on matching results of said pronunciation symbol string for search results and said recognition result pronunciation symbol string for each of said plurality of word strings for search results.

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