Who says like a style of Vitamin: Towards Syntax-Aware DialogueSummarization using Multi-task Learning

• URL: http://arxiv.org/abs/2109.14199v1
• Date: Wed, 29 Sep 2021 05:30:39 GMT
• Title: Who says like a style of Vitamin: Towards Syntax-Aware DialogueSummarization using Multi-task Learning
• Authors: Seolhwa Lee, Kisu Yang, Chanjun Park, Jo\~ao Sedoc, Heuiseok Lim
• Abstract summary: We focus on the association between utterances from individual speakers and unique syntactic structures. Speakers have unique textual styles that can contain linguistic information, such as voiceprint. We employ multi-task learning of both syntax-aware information and dialogue summarization.
• Score: 2.251583286448503
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: Abstractive dialogue summarization is a challenging task for several reasons. First, most of the important pieces of information in a conversation are scattered across utterances through multi-party interactions with different textual styles. Second, dialogues are often informal structures, wherein different individuals express personal perspectives, unlike text summarization, tasks that usually target formal documents such as news articles. To address these issues, we focused on the association between utterances from individual speakers and unique syntactic structures. Speakers have unique textual styles that can contain linguistic information, such as voiceprint. Therefore, we constructed a syntax-aware model by leveraging linguistic information (i.e., POS tagging), which alleviates the above issues by inherently distinguishing sentences uttered from individual speakers. We employed multi-task learning of both syntax-aware information and dialogue summarization. To the best of our knowledge, our approach is the first method to apply multi-task learning to the dialogue summarization task. Experiments on a SAMSum corpus (a large-scale dialogue summarization corpus) demonstrated that our method improved upon the vanilla model. We further analyze the costs and benefits of our approach relative to baseline models.

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