Diversifying Task-oriented Dialogue Response Generation with Prototype Guided Paraphrasing

Understand

Existing methods for Dialogue Response Generation (DRG) in Task-oriented Dialogue Systems (TDSs) can be grouped into two categories: template-based and corpus-based.

• The former prepare a collection of response templates in advance and fill the slots with system actions to produce system responses at runtime.
• The latter generate system responses token by token by taking system actions into account.
• While template-based DRG provides high precision and highly predictable responses, they usually lack in terms of generating diverse and natural responses when compared to (neural) corpus-based approaches.