Introducing curiosities in a conversation is a way to teach something new to the person in a pleasant and enjoyable way. Enriching dialogues with contextualized curiosities can improve the users' perception of a dialog system and their overall user experience. In this paper, we introduce a set of curated curiosities, targeting dialogues in the cooking and DIY domains. In particular, we use real human-agent conversations collected in the context of the Amazon Alexa TaskBot challenge, a multimodal and multi-turn conversational setting. According to an A/B test with over 1000 conversations, curiosities not only increase user engagement, but provide an average relative rating improvement of 9.7%.

翻译：在对话中引入趣味知识是一种以愉悦方式向对方传授新知识的方法。用情境化的趣味知识丰富对话，可以提升用户对对话系统的感知及整体用户体验。本文介绍了一套经过精心策划的趣味知识，聚焦于烹饪和DIY领域的对话。我们特别使用了来自Amazon Alexa TaskBot挑战赛中收集的真实人机对话数据，这是一个多模态、多轮对话的场景。根据超过1000次对话的A/B测试结果，趣味知识不仅提高了用户参与度，还带来了平均9.7%的相对评分提升。