论文标题
一项有关以任务为导向对话政策学习的强化学习方法的最新进展和挑战的调查
A Survey on Recent Advances and Challenges in Reinforcement Learning Methods for Task-Oriented Dialogue Policy Learning
论文作者
论文摘要
对话策略学习是面向任务的对话系统（TDS）的关键组成部分，该系统决定在每个回合处给定对话状态的系统的下一个动作。加强学习（RL）通常被选为学习对话政策，以用户为环境和系统作为代理。已经创建了许多基准数据集和算法，以促进基于RL的对话策略的制定和评估。在本文中，我们调查了RL规定的对话政策的最新进展和挑战。更具体地说，我们确定了主要问题，并总结了基于RL的对话政策学习的相应解决方案。此外，我们通过将最新方法分类为RL中的基本元素，对将RL应用于对话政策学习的全面调查。我们认为，这项调查可以阐明对话管理中未来的研究。
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.
