RankAug: Augmented data ranking for text classification

Tiasa Roy, Priyam Basu


Abstract
Research on data generation and augmentation has been focused majorly around enhancing generation models, leaving a notable gap in the exploration and refinement of methods for evaluating synthetic data. There are several text similarity metrics within the context of generated data filtering which can impact the performance of specific Natural Language Understanding (NLU) tasks, specifically focusing on intent and sentiment classification. In this study, we propose RankAug, a text-ranking approach that detects and filters out the top augmented texts in terms of being most similar in meaning with lexical and syntactical diversity. Through experiments conducted on multiple datasets, we demonstrate that the judicious selection of filtering techniques can yield a substantial improvement of up to 35% in classification accuracy for under-represented classes.
Anthology ID:
2023.gem-1.26
Volume:
Proceedings of the Third Workshop on Natural Language Generation, Evaluation, and Metrics (GEM)
Month:
December
Year:
2023
Address:
Singapore
Editors:
Sebastian Gehrmann, Alex Wang, João Sedoc, Elizabeth Clark, Kaustubh Dhole, Khyathi Raghavi Chandu, Enrico Santus, Hooman Sedghamiz
Venues:
GEM | WS
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
317–323
Language:
URL:
https://aclanthology.org/2023.gem-1.26
DOI:
Bibkey:
Cite (ACL):
Tiasa Roy and Priyam Basu. 2023. RankAug: Augmented data ranking for text classification. In Proceedings of the Third Workshop on Natural Language Generation, Evaluation, and Metrics (GEM), pages 317–323, Singapore. Association for Computational Linguistics.
Cite (Informal):
RankAug: Augmented data ranking for text classification (Roy & Basu, GEM-WS 2023)
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PDF:
https://aclanthology.org/2023.gem-1.26.pdf