A New Concept of Knowledge based Question Answering (KBQA) System for Multi-hop Reasoning

Yu Wang, V.srinivasan@samsung.com V.srinivasan@samsung.com, Hongxia Jin


Abstract
Knowledge based question answering (KBQA) is a complex task for natural language understanding. Many KBQA approaches have been proposed in recent years, and most of them are trained based on labeled reasoning path. This hinders the system’s performance as many correct reasoning paths are not labeled as ground truth, and thus they cannot be learned. In this paper, we introduce a new concept of KBQA system which can leverage multiple reasoning paths’ information and only requires labeled answer as supervision. We name it as Mutliple Reasoning Paths KBQA System (MRP-QA). We conduct experiments on several benchmark datasets containing both single-hop simple questions as well as muti-hop complex questions, including WebQuestionSP (WQSP), ComplexWebQuestion-1.1 (CWQ), and PathQuestion-Large (PQL), and demonstrate strong performance.
Anthology ID:
2022.naacl-main.294
Volume:
Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies
Month:
July
Year:
2022
Address:
Seattle, United States
Venue:
NAACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
4007–4017
Language:
URL:
https://aclanthology.org/2022.naacl-main.294
DOI:
10.18653/v1/2022.naacl-main.294
Bibkey:
Cite (ACL):
Yu Wang, V.srinivasan@samsung.com V.srinivasan@samsung.com, and Hongxia Jin. 2022. A New Concept of Knowledge based Question Answering (KBQA) System for Multi-hop Reasoning. In Proceedings of the 2022 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies, pages 4007–4017, Seattle, United States. Association for Computational Linguistics.
Cite (Informal):
A New Concept of Knowledge based Question Answering (KBQA) System for Multi-hop Reasoning (Wang et al., NAACL 2022)
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PDF:
https://aclanthology.org/2022.naacl-main.294.pdf