The method and apparatus for post-processing conversation error using multilevel check in voice conversation system

An apparatus for post-processing conversation errors by using the multi-level verification in a voice conversation system and a method therefor are provided to recognize various conversation errors which can be generated in the conversation system, through the verification of multi-level type. A voice recognition part(50) extracts the feature vector of a voice signal and performs the voice recognition. A language analysis part(120) linguistically analyzes the user's utterance and outputs the language analysis result. A conversation analysis part(130) grasps the detailed meaning of the user's utterance based on the previous utterance and outputs the conversation analysis result. A conversation analysis and management part(140) analyzes the meaning of the user's utterance by referring to the flow of the whole conversation and outputs the analyzed result.