FPT: Feature Prompt Tuning for Few-shot Readability Assessment

Ziyang Wang, Sanwoo Lee, Hsiu-Yuan Huang, Yunfang Wu


Abstract
Prompt-based methods have achieved promising results in most few-shot text classification tasks. However, for readability assessment tasks, traditional prompt methods lack crucial linguistic knowledge, which has already been proven to be essential.Moreover, previous studies on utilizing linguistic features have shown non-robust performance in few-shot settings and may even impair model performance.To address these issues, we propose a novel prompt-based tuning framework that incorporates rich linguistic knowledge, called Feature Prompt Tuning (FPT). Specifically, we extract linguistic features from the text and embed them into trainable soft prompts. Further, we devise a new loss function to calibrate the similarity ranking order between categories. Experimental results demonstrate that our proposed method FTPnot only exhibits a significant performance improvement over the prior best prompt-based tuning approaches, but also surpasses the previous leading methods that incorporate linguistic features. Also, our proposed model significantly outperforms the large language model gpt-3.5-turbo-16k in most cases. Our proposed method establishes a new architecture for prompt tuning that sheds light on how linguistic features can be easily adapted to linguistic-related tasks.
Anthology ID:
2024.naacl-long.16
Volume:
Proceedings of the 2024 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 1: Long Papers)
Month:
June
Year:
2024
Address:
Mexico City, Mexico
Editors:
Kevin Duh, Helena Gomez, Steven Bethard
Venue:
NAACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
280–295
Language:
URL:
https://aclanthology.org/2024.naacl-long.16
DOI:
Bibkey:
Cite (ACL):
Ziyang Wang, Sanwoo Lee, Hsiu-Yuan Huang, and Yunfang Wu. 2024. FPT: Feature Prompt Tuning for Few-shot Readability Assessment. In Proceedings of the 2024 Conference of the North American Chapter of the Association for Computational Linguistics: Human Language Technologies (Volume 1: Long Papers), pages 280–295, Mexico City, Mexico. Association for Computational Linguistics.
Cite (Informal):
FPT: Feature Prompt Tuning for Few-shot Readability Assessment (Wang et al., NAACL 2024)
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PDF:
https://aclanthology.org/2024.naacl-long.16.pdf
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 2024.naacl-long.16.copyright.pdf