Patent ID: 11961510
Assignee: KABUSHIKI KAISHA TOSHIBA
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 0:
1. An information processing apparatus comprising:
a processor configured to operate as:
a first data acquisition unit configured to acquire first training data including at least one combination of a voice feature quantity and a correct phoneme label of the voice feature quantity;
a training unit configured to train, using the first training data, an acoustic model in a manner to output the correct phoneme label in response to input of the voice feature quantity, the input being performed by the acoustic model, the acoustic model outputting the correct phoneme label;
an extraction unit configured to extract, from the first training data, second training data including voice feature quantities of first data pieces and correct phoneme labels of the voice feature quantities, the first data pieces including a preset keyword and at least one of a sub-word included in the preset keyword, a syllable included in the preset keyword, or a phoneme included in the preset keyword; and
an adaptation processing unit configured to adapt, using the second training data, the trained acoustic model to a keyword model used for detection of the preset keyword, the keyword model being generated from the trained acoustic model, the keyword model adapted for the preset keyword being retrained based on the trained acoustic model, wherein
the extraction unit extracts second data pieces as the second training data up to a predetermined number of data pieces, in descending order according to a proportion in number of a letter of the preset keyword, a letter of the sub-word, the syllable, or the phoneme to a data piece.