UniDS: A Unified Dialogue System for Chit-Chat and Task-oriented Dialogues

• URL: http://arxiv.org/abs/2110.08032v1
• Date: Fri, 15 Oct 2021 11:56:47 GMT
• Title: UniDS: A Unified Dialogue System for Chit-Chat and Task-oriented Dialogues
• Authors: Xinyan Zhao, Bin He, Yasheng Wang, Yitong Li, Fei Mi, Yajiao Liu, Xin Jiang, Qun Liu, Huanhuan Chen
• Abstract summary: We propose a unified dialogue system (UniDS) with the two aforementioned skills. We design a unified dialogue data schema, compatible for both chit-chat and task-oriented dialogues. We train UniDS with mixed dialogue data from a pretrained chit-chat dialogue model.
• Score: 59.499965460525694
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: With the advances in deep learning, tremendous progress has been made with chit-chat dialogue systems and task-oriented dialogue systems. However, these two systems are often tackled separately in current methods. To achieve more natural interaction with humans, a dialogue agent needs to be capable of both chatting and accomplishing tasks. To this end, we propose a unified dialogue system (UniDS) with the two aforementioned skills. In particular, we design a unified dialogue data schema, compatible for both chit-chat and task-oriented dialogues, and we train UniDS with mixed dialogue data from a pretrained chit-chat dialogue model. Without adding extra parameters to SOTA baselines, UniDS can alternatively handle chit-chat and task-oriented dialogues in a unified framework. Experimental results demonstrate that the proposed UniDS works comparably well as the pure chit-chat system, and it outperforms state-of-the-art task-oriented dialogue systems. More importantly, UniDS achieves better robustness as it is able to smoothly switch between two types of dialogues. These results demonstrate the feasibility and potential of building an one-for-all dialogue system.

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