Leveraging QA Datasets to Improve Generative Data Augmentation

Dheeraj Mekala, Tu Vu, Timo Schick, Jingbo Shang


Abstract
The ability of generative language models (GLMs) to generate text has improved considerably in the last few years, enabling their use for generative data augmentation. In this work, we propose CONDA, an approach to further improve GLM’s ability to generate synthetic data by reformulating data generation as context generation for a given question-answer (QA) pair and leveraging QA datasets for training context generators. Then, we cast downstream tasks into the same question answering format and adapt the fine-tuned context generators to the target task domain. Finally, we use the fine-tuned GLM to generate relevant contexts, which are in turn used as synthetic training data for their corresponding tasks. We perform extensive experiments on multiple classification datasets and demonstrate substantial improvements in performance for both few- and zero-shot settings. Our analysis reveals that QA datasets that require high-level reasoning abilities (e.g., abstractive and common-sense QA datasets) tend to give the best boost in performance in both few-shot and zero-shot settings.
Anthology ID:
2022.emnlp-main.660
Volume:
Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing
Month:
December
Year:
2022
Address:
Abu Dhabi, United Arab Emirates
Venue:
EMNLP
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
9737–9750
Language:
URL:
https://aclanthology.org/2022.emnlp-main.660
DOI:
Bibkey:
Cite (ACL):
Dheeraj Mekala, Tu Vu, Timo Schick, and Jingbo Shang. 2022. Leveraging QA Datasets to Improve Generative Data Augmentation. In Proceedings of the 2022 Conference on Empirical Methods in Natural Language Processing, pages 9737–9750, Abu Dhabi, United Arab Emirates. Association for Computational Linguistics.
Cite (Informal):
Leveraging QA Datasets to Improve Generative Data Augmentation (Mekala et al., EMNLP 2022)
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PDF:
https://aclanthology.org/2022.emnlp-main.660.pdf