GenTUS: Simulating User Behaviour and Language in Task-oriented Dialogues with Generative Transformers

We propose a generative transform-based user simulator (GenTUS) in this work. GenTUS consists of an encoder-decoder structure, which can optimise both the user policy and natural language generation jointly. GenTUS generates semantic actions and natural language utterances, preserving interpretability and enhancing language variation. More information can be found in this link: https://aclanthology.org/2022.sigdial-1.28.pdf