A Survey on Recent Advances and Challenges in Reinforcement LearningMethods for Task-Oriented Dialogue Policy Learning

• URL: http://arxiv.org/abs/2202.13675v1
• Date: Mon, 28 Feb 2022 10:50:22 GMT
• Title: A Survey on Recent Advances and Challenges in Reinforcement LearningMethods for Task-Oriented Dialogue Policy Learning
• Authors: Wai-Chung Kwan, Hongru Wang, Huimin Wang, Kam-Fai Wong
• Abstract summary: Reinforcement Learning (RL) is commonly chosen to learn the dialogue policy, regarding the user as the environment and the system as the agent. In this paper, we survey recent advances and challenges in dialogue policy from the prescriptive of RL. We provide a comprehensive survey of applying RL to dialogue policy learning by categorizing recent methods into basic elements in RL.
• Score: 16.545577313042827
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Dialogue Policy Learning is a key component in a task-oriented dialogue system (TDS) that decides the next action of the system given the dialogue state at each turn. Reinforcement Learning (RL) is commonly chosen to learn the dialogue policy, regarding the user as the environment and the system as the agent. Many benchmark datasets and algorithms have been created to facilitate the development and evaluation of dialogue policy based on RL. In this paper, we survey recent advances and challenges in dialogue policy from the prescriptive of RL. More specifically, we identify the major problems and summarize corresponding solutions for RL-based dialogue policy learning. Besides, we provide a comprehensive survey of applying RL to dialogue policy learning by categorizing recent methods into basic elements in RL. We believe this survey can shed a light on future research in dialogue management.

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