Discourse Coherence, Reference Grounding and Goal Oriented Dialogue

Autor:	Khalid, Baber, Alikhani, Malihe, Fellner, Michael, McMahan, Brian, Stone, Matthew
Rok vydání:	2020
Předmět:	Computer Science - Computation and Language
Druh dokumentu:	Working Paper
Popis:	Prior approaches to realizing mixed-initiative human--computer referential communication have adopted information-state or collaborative problem-solving approaches. In this paper, we argue for a new approach, inspired by coherence-based models of discourse such as SDRT \cite{asher-lascarides:2003a}, in which utterances attach to an evolving discourse structure and the associated knowledge graph of speaker commitments serves as an interface to real-world reasoning and conversational strategy. As first steps towards implementing the approach, we describe a simple dialogue system in a referential communication domain that accumulates constraints across discourse, interprets them using a learned probabilistic model, and plans clarification using reinforcement learning. Comment: Accepted for Publishing at SemDial 2020
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2007.04428 Zobrazit plný text záznamu View this record from Arxiv