Information processing device, information processing method, computer program product, and recognition system
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United States of America Patent
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Jun 11, 2019
Grant Date -
Sep 14, 2017
app pub date -
Dec 23, 2016
filing date -
Mar 14, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An information processing device includes a phonetic converting unit, an HMM converting unit, and a searching unit. The phonetic converting unit converts a phonetic symbol sequence into a hidden Markov model (HMM) state sequence in which states of an HMM are aligned. The HMM converting unit converts the HMM state sequence into a score vector sequence indicating the degree of similarity to a specific pronunciation using a similarity matrix defining the similarity between the states of the HMM. The searching unit searches for a path having a better score for the score vector sequence than that of the other paths out of paths included in a search network and outputs a phonetic symbol sequence corresponding to the retrieved path.
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