Behavior inference model building apparatus and behavior inference model building method thereof

A behavior inference model building apparatus and a behavior inference model building method thereof are provided. The behavior inference model building apparatus converts a plurality of program operation sequences of a plurality of program operation sequence data into a plurality of word vectors through a word embedding model, and inputs the first M word vectors of the word vectors, corresponding to each program operation sequence data, into a generative adversarial network (GAN) model to train and optimize the GAN model. The behavior inference model building apparatus integrates the word embedding model and the generator of the optimized GAN model to build a behavior inference model.