GENDEX: Generative Data Augmentation Strategy Leveraging External Data for Abstractive Dialogue Summarization

Sangwon Park, Hongseok Choi, Dongha Choi, Hyunju Lee


Abstract
With the proliferation of digital communication, dialogue summarization has become increasingly important. However, it still faces a shortage of data. To address this issue, we developed **Gen**erative **D**ata Augmentation Strategy Leveraging **Ex**ternal Data for Abstractive Dialogue Summarization (**GENDEX**), which is based on the hypothetical foundation that texts containing people and their interpersonal interactions can potentially serve as summaries of corresponding dialogues. We filter short texts containing people and resolve coreferences for better contextual analysis. We then identify the semantic roles of words within the texts and filter them based on the patterns observed in the dialogue summarization datasets. Using these texts, we generate synthetic dialogues through a controlled generation method. To better leverage the augmented data, we utilize noise-tolerant training to fine-tune the summarization model. The experimental results demonstrate the effectiveness of our proposed method, showing its robust performance, generalizability, and scalability. Moreover, performance improvements by *GENDEX* were observed regardless of complexity of dialogues. The code is available at https://github.com/DMCB-GIST/GENDEX.
Anthology ID:
2024.findings-acl.188
Volume:
Findings of the Association for Computational Linguistics: ACL 2024
Month:
August
Year:
2024
Address:
Bangkok, Thailand
Editors:
Lun-Wei Ku, Andre Martins, Vivek Srikumar
Venue:
Findings
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
3171–3185
Language:
URL:
https://aclanthology.org/2024.findings-acl.188
DOI:
10.18653/v1/2024.findings-acl.188
Bibkey:
Cite (ACL):
Sangwon Park, Hongseok Choi, Dongha Choi, and Hyunju Lee. 2024. GENDEX: Generative Data Augmentation Strategy Leveraging External Data for Abstractive Dialogue Summarization. In Findings of the Association for Computational Linguistics: ACL 2024, pages 3171–3185, Bangkok, Thailand. Association for Computational Linguistics.
Cite (Informal):
GENDEX: Generative Data Augmentation Strategy Leveraging External Data for Abstractive Dialogue Summarization (Park et al., Findings 2024)
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PDF:
https://aclanthology.org/2024.findings-acl.188.pdf