Investigating the Effect of Pre-finetuning BERT Models on NLI Involving Presuppositions

Jad Kabbara, Jackie Cheung


Abstract
We explore the connection between presupposition, discourse and sarcasm and propose to leverage that connection in a transfer learning scenario with the goal of improving the performance of NLI models on cases involving presupposition. We exploit advances in training transformer-based models that show that pre-finetuning—–i.e., finetuning the model on an additional task or dataset before the actual finetuning phase—–can help these models, in some cases, achieve a higher performance on a given downstream task. Building on those advances and that aforementioned connection, we propose pre-finetuning NLI models on carefully chosen tasks in an attempt to improve their performance on NLI cases involving presupposition. We notice that, indeed, pre-finetuning on those tasks leads to performance improvements. Furthermore, we run several diagnostic tests to understand whether these gains are merely a byproduct of additional training data. The results show that, while additional training data seems to be helping on its own in some cases, the choice of the tasks plays a role in the performance improvements.
Anthology ID:
2023.findings-emnlp.703
Volume:
Findings of the Association for Computational Linguistics: EMNLP 2023
Month:
December
Year:
2023
Address:
Singapore
Editors:
Houda Bouamor, Juan Pino, Kalika Bali
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
10482–10494
Language:
URL:
https://aclanthology.org/2023.findings-emnlp.703
DOI:
10.18653/v1/2023.findings-emnlp.703
Bibkey:
Cite (ACL):
Jad Kabbara and Jackie Cheung. 2023. Investigating the Effect of Pre-finetuning BERT Models on NLI Involving Presuppositions. In Findings of the Association for Computational Linguistics: EMNLP 2023, pages 10482–10494, Singapore. Association for Computational Linguistics.
Cite (Informal):
Investigating the Effect of Pre-finetuning BERT Models on NLI Involving Presuppositions (Kabbara & Cheung, Findings 2023)
Copy Citation:
PDF:
https://aclanthology.org/2023.findings-emnlp.703.pdf