SPEECH RECOGNITION DEVICE, METHOD AND PROGRAM

摘要

PROBLEM TO BE SOLVED: To provide a speech recognition device, method and program having high speech recognition performance.SOLUTION: A speech recognition device comprises: a speech recognition section 10 for recognizing user's speech using a language model; an independent word extraction section 21 for extracting an independent word included in the user's speech; an independent word relevance DB 31 for storing an independent word relevant to each other in association with relevance; independent word characteristic DB 32 for storing characteristic information of an independent word included in a text used by a user; a priority calculation section 22 for calculating priority of a relevant independent word relevant to the independent word extracted by the independent word extraction section 21; and a language model updating processing section 24 for adjusting weight of the language model in accordance with the priority.