... system dialogue policy optimization student-teacher learning offline reinforcement learning Designing a faultless dialogue system is challenging, especially in the case of multi-domain multi-turn dialogue tasks where each conversation with multiple turns may comprise multiple domains...

... within a short conversation. Furthermore, offering the precise answers to satisfy the user requirements makes the task even more challenging. This paper surveys recent advances in multi-domain task-oriented dialogue policy optimization and summarizes a number of solutions to policy learning...