PK-ICR: Persona-Knowledge Interactive Multi-Context Retrieval for Grounded Dialogue

Minsik Oh, Joosung Lee, Jiwei Li, Guoyin Wang


Abstract
Identifying relevant persona or knowledge for conversational systems is critical to grounded dialogue response generation. However, each grounding has been mostly researched in isolation with more practical multi-context dialogue tasks introduced in recent works. We define Persona and Knowledge Dual Context Identification as the task to identify persona and knowledge jointly for a given dialogue, which could be of elevated importance in complex multi-context dialogue settings. We develop a novel grounding retrieval method that utilizes all contexts of dialogue simultaneously. Our method requires less computational power via utilizing neural QA retrieval models. We further introduce our novel null-positive rank test which measures ranking performance on semantically dissimilar samples (i.e. hard negatives) in relation to data augmentation.
Anthology ID:
2023.emnlp-main.1020
Volume:
Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
16383–16395
Language:
URL:
https://aclanthology.org/2023.emnlp-main.1020
DOI:
10.18653/v1/2023.emnlp-main.1020
Bibkey:
Cite (ACL):
Minsik Oh, Joosung Lee, Jiwei Li, and Guoyin Wang. 2023. PK-ICR: Persona-Knowledge Interactive Multi-Context Retrieval for Grounded Dialogue. In Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing, pages 16383–16395, Singapore. Association for Computational Linguistics.
Cite (Informal):
PK-ICR: Persona-Knowledge Interactive Multi-Context Retrieval for Grounded Dialogue (Oh et al., EMNLP 2023)
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PDF:
https://aclanthology.org/2023.emnlp-main.1020.pdf
Video:
 https://aclanthology.org/2023.emnlp-main.1020.mp4