IITK-RSA at SemEval-2020 Task 5: Detecting Counterfactuals

Anirudh Anil Ojha, Rohin Garg, Shashank Gupta, Ashutosh Modi


Abstract
This paper describes our efforts in tackling Task 5 of SemEval-2020. The task involved detecting a class of textual expressions known as counterfactuals and separating them into their constituent elements. Our final submitted approaches were an ensemble of various fine-tuned transformer-based and CNN-based models for the first subtask and a transformer model with dependency tree information for the second subtask. We ranked 4-th and 9-th in the overall leaderboard. We also explored various other approaches that involved classical methods, other neural architectures and incorporation of different linguistic features.
Anthology ID:
2020.semeval-1.56
Volume:
Proceedings of the Fourteenth Workshop on Semantic Evaluation
Month:
December
Year:
2020
Address:
Barcelona (online)
Editors:
Aurelie Herbelot, Xiaodan Zhu, Alexis Palmer, Nathan Schneider, Jonathan May, Ekaterina Shutova
Venue:
SemEval
SIG:
SIGLEX
Publisher:
International Committee for Computational Linguistics
Note:
Pages:
458–467
Language:
URL:
https://aclanthology.org/2020.semeval-1.56
DOI:
10.18653/v1/2020.semeval-1.56
Bibkey:
Cite (ACL):
Anirudh Anil Ojha, Rohin Garg, Shashank Gupta, and Ashutosh Modi. 2020. IITK-RSA at SemEval-2020 Task 5: Detecting Counterfactuals. In Proceedings of the Fourteenth Workshop on Semantic Evaluation, pages 458–467, Barcelona (online). International Committee for Computational Linguistics.
Cite (Informal):
IITK-RSA at SemEval-2020 Task 5: Detecting Counterfactuals (Ojha et al., SemEval 2020)
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PDF:
https://aclanthology.org/2020.semeval-1.56.pdf