DIALOGUE CONTROL DEVICE, DIALOGUE CONTROL METHOD, AND DIALOGUE CONTROLLING COMPUTER PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a dialogue control device capable of precisely providing a piece of information desired by a user from plural information supply sources.

SOLUTION: A dialogue control device 1 includes: a storage section 32 that stores plural sets of a service identifier and an information identifier, and a keyword and a weighting coefficient associated with each set; a keyword determination section 34 that calculates a similarity level between each keyword and a recognition candidate word detected from an input voice signal so that the larger weighting coefficient results in the larger similarity and detects a keyword which has the largest similarity level; a presentation information obtaining section 35 that obtains a piece of presentation information identified by the set of a service identifier and an information identifier associated with the detected keyword; and a weight updating section 39 that updates the weighting coefficient of the keyword associated with a first service identifier and the weighting coefficient of the keyword associated with a second service identifier on the basis of the difference between the first service identifier representing the supply source of the present presentation information and the second service identifier representing the supply source of previously obtained presentation information.

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