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题目: A Survey on Dialog Management: Recent Advances and Challenges

摘要:

对话管理(DM)是面向任务的对话系统的一个重要组成部分。给定对话历史记录,DM预测对话状态并决定对话代理应该采取的下一步操作。近年来,对话策略学习被广泛地定义为一种强化学习(RL)问题,越来越多的研究集中在DM的适用性上。在本文中,综述了DM的三个关键主题的最新进展和挑战:

  • 提高模型可扩展性,方便对话系统在新场景下建模;
  • 处理对话策略学习的数据稀缺性问题;
  • 提高培训效率,实现更好的任务完成绩效。

相信这项调查可以为未来对话管理的研究提供一些启示。

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Previous researches on dialogue system assessment usually focus on the quality evaluation (e.g. fluency, relevance, etc) of responses generated by the chatbots, which are local and technical metrics. For a chatbot which responds to millions of online users including minors, we argue that it should have a healthy mental tendency in order to avoid the negative psychological impact on them. In this paper, we establish several mental health assessment dimensions for chatbots (depression, anxiety, alcohol addiction, empathy) and introduce the questionnaire-based mental health assessment methods. We conduct assessments on some well-known open-domain chatbots and find that there are severe mental health issues for all these chatbots. We consider that it is due to the neglect of the mental health risks during the dataset building and the model training procedures. We expect to attract researchers' attention to the serious mental health problems of chatbots and improve the chatbots' ability in positive emotional interaction.

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Previous researches on dialogue system assessment usually focus on the quality evaluation (e.g. fluency, relevance, etc) of responses generated by the chatbots, which are local and technical metrics. For a chatbot which responds to millions of online users including minors, we argue that it should have a healthy mental tendency in order to avoid the negative psychological impact on them. In this paper, we establish several mental health assessment dimensions for chatbots (depression, anxiety, alcohol addiction, empathy) and introduce the questionnaire-based mental health assessment methods. We conduct assessments on some well-known open-domain chatbots and find that there are severe mental health issues for all these chatbots. We consider that it is due to the neglect of the mental health risks during the dataset building and the model training procedures. We expect to attract researchers' attention to the serious mental health problems of chatbots and improve the chatbots' ability in positive emotional interaction.

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