Other Roles Matter! Enhancing Role-Oriented Dialogue Summarization via Role Interactions

Haitao Lin, Junnan Zhu, Lu Xiang, Yu Zhou, Jiajun Zhang, Chengqing Zong


Abstract
Role-oriented dialogue summarization is to generate summaries for different roles in the dialogue, e.g., merchants and consumers. Existing methods handle this task by summarizing each role’s content separately and thus are prone to ignore the information from other roles. However, we believe that other roles’ content could benefit the quality of summaries, such as the omitted information mentioned by other roles. Therefore, we propose a novel role interaction enhanced method for role-oriented dialogue summarization. It adopts cross attention and decoder self-attention interactions to interactively acquire other roles’ critical information. The cross attention interaction aims to select other roles’ critical dialogue utterances, while the decoder self-attention interaction aims to obtain key information from other roles’ summaries. Experimental results have shown that our proposed method significantly outperforms strong baselines on two public role-oriented dialogue summarization datasets. Extensive analyses have demonstrated that other roles’ content could help generate summaries with more complete semantics and correct topic structures.
Anthology ID:
2022.acl-long.182
Volume:
Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)
Month:
May
Year:
2022
Address:
Dublin, Ireland
Venue:
ACL
SIG:
Publisher:
Association for Computational Linguistics
Note:
Pages:
2545–2558
Language:
URL:
https://aclanthology.org/2022.acl-long.182
DOI:
10.18653/v1/2022.acl-long.182
Bibkey:
Cite (ACL):
Haitao Lin, Junnan Zhu, Lu Xiang, Yu Zhou, Jiajun Zhang, and Chengqing Zong. 2022. Other Roles Matter! Enhancing Role-Oriented Dialogue Summarization via Role Interactions. In Proceedings of the 60th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers), pages 2545–2558, Dublin, Ireland. Association for Computational Linguistics.
Cite (Informal):
Other Roles Matter! Enhancing Role-Oriented Dialogue Summarization via Role Interactions (Lin et al., ACL 2022)
Copy Citation:
PDF:
https://aclanthology.org/2022.acl-long.182.pdf
Software:
 2022.acl-long.182.software.zip
Code
 atulkum/pointer_summarizer +  additional community code