Virtual assistants such as Google Assistant, Alexa and Siri provide a conversational interface to a large number of services and APIs spanning multiple domains. Such systems need to support an ever-increasing number of services with possibly overlapping functionality. Furthermore, some of these services have little to no training data available. Existing public datasets for task-oriented dialogue do not sufficiently capture these challenges since they cover few domains and assume a single static ontology per domain. In this work, we introduce the the Schema-Guided Dialogue (SGD) dataset, containing over 16k multi-domain conversations spanning 16 domains. Our dataset exceeds the existing task-oriented dialogue corpora in scale, while also highlighting the challenges associated with building large-scale virtual assistants. It provides a challenging testbed for a number of tasks including language understanding, slot filling, dialogue state tracking and response generation. Along the same lines, we present a schema-guided paradigm for task-oriented dialogue, in which predictions are made over a dynamic set of intents and slots, provided as input, using their natural language descriptions. This allows a single dialogue system to easily support a large number of services and facilitates simple integration of new services without requiring additional training data. Building upon the proposed paradigm, we release a zero-shot dialogue state tracking model that achieves state-of-the-art performance on recent benchmark datasets.

本文介绍了Schema-Guided Dialogue (SGD)数据集，包括16个领域的16,000个多领域对话。SGD数据集提供了一个具有挑战性的测试平台，可以用于测试任务包括语言理解，位置填充，对话状态跟踪和响应生成。文章也提出了一个基于模式的任务导向对话的范式，尤其是在输入中提供了一组动态的意图和插槽自然的语言描述，提高了对大量服务形态的支持和新服务的快速集成。

实现可扩展的多领域对话代理: Schema-Guided对话数据集