DEVICE AND METHOD FOR ANALYZING SPEECH ACT

As a speech act analysis device, the speech act analysis device includes: a word similarity calculator that receives an input utterance vector that is vectorized from information on at least one or more words forming an input utterance, and a previous speech act vector that is vectorized from speech act information with respect to a previous utterance of the input utterance, and generates an input utterance similarity vector that reflects similarity between the input utterance vector and the previous speech act vector; a conversation vector generator that generates a conversation unit input utterance vector that is vectorized from information with respect to the input utterance in a conversation including the input utterance by inputting the input utterance similarity vector in a convolution neural network; a conversation similarity calculator that receives a speaker vector that is vectorized from speaker information of the input utterance, and generates a conversation unit input utterance similarity vector that reflects similarity between the conversation unit input utterance vector and the speaker vector; and a speech act classifier that determines a speech act of the input utterance by inputting the conversation unit input utterance similarity vector in a recurrent neural network.