Incremental Graph-Based Semantics and Reasoning for Conversational AI

Angus Addlesee, Arash Eshghi


Abstract
The next generation of conversational AI systems need to: (1) process language incrementally, token-by-token to be more responsive and enable handling of conversational phenomena such as pauses, restarts and self-corrections; (2) reason incrementally allowing meaning to be established beyond what is said; (3) be transparent and controllable, allowing designers as well as the system itself to easily establish reasons for particular behaviour and tailor to particular user groups, or domains. In this short paper we present ongoing preliminary work combining Dynamic Syntax (DS) - an incremental, semantic grammar framework - with the Resource Description Framework (RDF). This paves the way for the creation of incremental semantic parsers that progressively output semantic RDF graphs as an utterance unfolds in real-time. We also outline how the parser can be integrated with an incremental reasoning engine through RDF. We argue that this DS-RDF hybrid satisfies the desiderata listed above, yielding semantic infrastructure that can be used to build responsive, real-time, interpretable Conversational AI that can be rapidly customised for specific user groups such as people with dementia.
Anthology ID:
2021.reinact-1.1
Volume:
Proceedings of the Reasoning and Interaction Conference (ReInAct 2021)
Month:
October
Year:
2021
Address:
Gothenburg, Sweden
Venue:
ReInAct
SIG:
SIGSEM
Publisher:
Association for Computational Linguistics
Note:
Pages:
1–7
Language:
URL:
https://aclanthology.org/2021.reinact-1.1
DOI:
Bibkey:
Cite (ACL):
Angus Addlesee and Arash Eshghi. 2021. Incremental Graph-Based Semantics and Reasoning for Conversational AI. In Proceedings of the Reasoning and Interaction Conference (ReInAct 2021), pages 1–7, Gothenburg, Sweden. Association for Computational Linguistics.
Cite (Informal):
Incremental Graph-Based Semantics and Reasoning for Conversational AI (Addlesee & Eshghi, ReInAct 2021)
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PDF:
https://aclanthology.org/2021.reinact-1.1.pdf