As a recent development, task-oriented dialogues (TODs) have been enriched with chitchat in an effort to make dialogues more diverse and engaging. This enhancement is particularly valuable as TODs are often confined to narrow domains, making the mitigation of repetitive and predictable responses a significant challenge. This paper presents a comparative analysis of three chitchat enhancements, aiming to identify the most effective approach in terms of diversity. Additionally, we quantify the divergence between the added chitchat, the original task-oriented language, and chitchat typically found in chitchat datasets, highlighting the top 20 divergent keywords for each comparison. Our findings drive a discussion on future enhancements for augmenting TODs, emphasizing the importance of grounding dialogues beyond the task to achieve more diverse and natural exchanges.

本论文通过比较分析三种闲聊增强方法，旨在确定多样性方面最有效的方法。此外，我们量化了增加的闲聊、原始任务导向语言和闲聊数据集中典型闲聊之间的差异，突出每个比较中的前20个差异关键词。我们的研究结果为增强任务导向对话提供了未来改进的讨论，强调了超越任务的对话基础对实现更多样化和自然化的交流的重要性。

在任务导向对话中加入闲聊的比较研究：基于词汇多样性和差异性