MetaLogic: Logical Reasoning Explanations with Fine-Grained Structure

Yinya Huang, Hongming Zhang, Ruixin Hong, Xiaodan Liang, Changshui Zhang, Dong Yu


Abstract
In this paper, we propose a comprehensive benchmark to investigate models’ logical reasoning capabilities in complex real-life scenarios. Current explanation datasets often employ synthetic data with simple reasoning structures. Therefore, it cannot express more complex reasoning processes, such as the rebuttal to a reasoning step and the degree of certainty of the evidence. To this end, we propose a comprehensive logical reasoning explanation form. Based on the multi-hop chain of reasoning, the explanation form includes three main components: (1) The condition of rebuttal that the reasoning node can be challenged; (2) Logical formulae that uncover the internal texture of reasoning nodes; (3) Reasoning strength indicated by degrees of certainty. The fine-grained structure conforms to the real logical reasoning scenario, better fitting the human cognitive process but, simultaneously, is more challenging for the current models. We evaluate the current best models’ performance on this new explanation form. The experimental results show that generating reasoning graphs remains a challenging task for current models, even with the help of giant pre-trained language models.
Anthology ID:
2022.emnlp-main.310
Volume:
Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing
Month:
December
Year:
2022
Address:
Abu Dhabi, United Arab Emirates
Editors:
Yoav Goldberg, Zornitsa Kozareva, Yue Zhang
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
4698–4724
Language:
URL:
https://aclanthology.org/2022.emnlp-main.310
DOI:
10.18653/v1/2022.emnlp-main.310
Bibkey:
Cite (ACL):
Yinya Huang, Hongming Zhang, Ruixin Hong, Xiaodan Liang, Changshui Zhang, and Dong Yu. 2022. MetaLogic: Logical Reasoning Explanations with Fine-Grained Structure. In Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing, pages 4698–4724, Abu Dhabi, United Arab Emirates. Association for Computational Linguistics.
Cite (Informal):
MetaLogic: Logical Reasoning Explanations with Fine-Grained Structure (Huang et al., EMNLP 2022)
Copy Citation:
PDF:
https://aclanthology.org/2022.emnlp-main.310.pdf
Software:
 2022.emnlp-main.310.software.zip