Voice recognition apparatus, method, and computer program product

摘要

In an embodiment, a voice recognition apparatus includes: a program information storage unit; a dictionary storage unit; a calculating unit; an updating unit; a receiving unit; a recognizing unit; and an operation control unit. The program information storage unit stores metadata of a broadcast program with a user's viewing state. The dictionary storage unit stores a recognition dictionary including a recognition word and a priority of the recognition word. The calculating unit calculates a first score of a degree of the user's preference on a feature word based on the metadata and the viewing state. The updating unit updates the priority of the recognition word including the feature word according to the first score. The recognizing unit recognizes a voice using the recognition dictionary. The operation control unit controls an operation on the broadcast program based on a recognition result.

主权项

1. A voice recognition apparatus comprising:
a program information storage unit configured to store metadata of a broadcast program in association with a user's viewing state; a dictionary storage unit configured to store a recognition dictionary including a recognition word which is a voice recognition target and a priority of the recognition word; a recommendation state storage unit configured to store a recommendation state representing one of a first state and a second state, the first state representing a state in which a feature word having a high first score is recommended among feature words, each feature word representing a feature of the broadcast program, the first score representing a degree of the user's preference for a feature word, the second state representing a state in which a feature word including specific information is recommended among the feature words, the specific information specifying a broadcast program having a high second score, the second score representing a degree of the user's preference for the broadcast program; a calculating unit configured to calculate the first score, the second score, and the feature words on the basis of the metadata and the viewing state; an updating unit configured to update the priority of a recognition word including a feature word among the feature words according to the first score when the recommendation state indicates the first state and to update the priority of a recognition word including the specific information according to the second score when the recommendation state indicates the second state; a receiving unit configured to receive a voice; a recognizing unit configured to recognize the voice using the recognition dictionary; and an operation control unit configured to control an operation on the broadcast program based on a recognition result by the recognizing unit.