Abstractive Open Information Extraction

Kevin Pei, Ishan Jindal, Kevin Chang


Abstract
Open Information Extraction (OpenIE) is a traditional NLP task that extracts structured information from unstructured text to be used for other downstream applications. Traditionally, OpenIE focuses on extracting the surface forms of relations as they appear in the raw text, which we term extractive OpenIE. One of the main drawbacks of this approach is that implicit semantic relations (inferred relations) can not be extracted, compromising the performance of downstream applications. In this paper, we broaden the scope of OpenIE relations from merely the surface form of relations to include inferred relations, which we term abstractive OpenIE. This new task calls for the development of a new abstractive OpenIE training dataset and a baseline neural model that can extract those inferred relations. We also demonstrate the necessity for a new semantics-based metric for evaluating abstractive OpenIE extractions. Via a case study on Complex QA, we demonstrate the effectiveness of abstractive OpenIE.
Anthology ID:
2023.emnlp-main.376
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:
6146–6158
Language:
URL:
https://aclanthology.org/2023.emnlp-main.376
DOI:
10.18653/v1/2023.emnlp-main.376
Bibkey:
Cite (ACL):
Kevin Pei, Ishan Jindal, and Kevin Chang. 2023. Abstractive Open Information Extraction. In Proceedings of the 2023 Conference on Empirical Methods in Natural Language Processing, pages 6146–6158, Singapore. Association for Computational Linguistics.
Cite (Informal):
Abstractive Open Information Extraction (Pei et al., EMNLP 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.emnlp-main.376.pdf