linking of (natural language) concepts to contexts
connecting the meaning of natural language units to real-world sensory data or external knowledge sources
Grounding ‘Grounding’ in NLP
Khyathi Raghavi Chandu, Yonatan Bisk, Alan W Black. Findings of the Association for Computational Linguistics: ACL-IJCNLP 2021. 2021.
https://aclanthology.org/2021.findings-acl.375/

Seonglae Cho