Explainable Topic-Enhanced Argument Mining from Heterogeneous Sources

• URL: http://arxiv.org/abs/2307.12131v1
• Date: Sat, 22 Jul 2023 17:26:55 GMT
• Title: Explainable Topic-Enhanced Argument Mining from Heterogeneous Sources
• Authors: Jiasheng Si, Yingjie Zhu, Xingyu Shi, Deyu Zhou, Yulan He
• Abstract summary: Given a controversial target such as nuclear energy'', argument mining aims to identify the argumentative text from heterogeneous sources. Current approaches focus on exploring better ways of integrating the target-associated semantic information with the argumentative text. We propose a novel explainable topic-enhanced argument mining approach.
• Score: 33.62800469391487
• License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/
• Abstract: Given a controversial target such as ``nuclear energy'', argument mining aims to identify the argumentative text from heterogeneous sources. Current approaches focus on exploring better ways of integrating the target-associated semantic information with the argumentative text. Despite their empirical successes, two issues remain unsolved: (i) a target is represented by a word or a phrase, which is insufficient to cover a diverse set of target-related subtopics; (ii) the sentence-level topic information within an argument, which we believe is crucial for argument mining, is ignored. To tackle the above issues, we propose a novel explainable topic-enhanced argument mining approach. Specifically, with the use of the neural topic model and the language model, the target information is augmented by explainable topic representations. Moreover, the sentence-level topic information within the argument is captured by minimizing the distance between its latent topic distribution and its semantic representation through mutual learning. Experiments have been conducted on the benchmark dataset in both the in-target setting and the cross-target setting. Results demonstrate the superiority of the proposed model against the state-of-the-art baselines.

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