Print Email Facebook Twitter An Empirical Analysis of Diversity in Argument Summarization Title An Empirical Analysis of Diversity in Argument Summarization Author van der Meer, M.T. (Universiteit Leiden) Jonker, C.M. (TU Delft Interactive Intelligence) Vossen, Piek (Vrije Universiteit Amsterdam) Murukannaiah, P.K. (TU Delft Interactive Intelligence) Contributor Graham, Yvette (editor) Purver, Matthew (editor) Purver, Matthew (editor) Date 2024 Abstract Presenting high-level arguments is a crucial task for fostering participation in online societal discussions. Current argument summarization approaches miss an important facet of this task-capturing diversity-which is important for accommodating multiple perspectives. We introduce three aspects of diversity: those of opinions, annotators, and sources. We evaluate approaches to a popular argument summarization task called Key Point Analysis, which shows how these approaches struggle to (1) represent arguments shared by few people, (2) deal with data from various sources, and (3) align with subjectivity in human-provided annotations. We find that both general-purpose LLMs and dedicated KPA models exhibit this behavior, but have complementary strengths. Further, we observe that diversification of training data may ameliorate generalization. Addressing diversity in argument summarization requires a mix of strategies to deal with subjectivity. To reference this document use: http://resolver.tudelft.nl/uuid:397e3b92-9b3a-4e48-80d4-09ede1901dff Publisher Association for Computational Linguistics (ACL) Embargo date 2024-09-30 ISBN 9798891760882 Source EACL 2024 - 18th Conference of the European Chapter of the Association for Computational Linguistics, Proceedings of the Conference Event 18th Conference of the European Chapter of the Association for Computational Linguistics, EACL 2024, 2024-03-17 → 2024-03-22, St. Julian�s, Malta Series EACL 2024 - 18th Conference of the European Chapter of the Association for Computational Linguistics, Proceedings of the Conference, 1 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type conference paper Rights © 2024 M.T. van der Meer, C.M. Jonker, Piek Vossen, P.K. Murukannaiah Files file embargo until 2024-09-30