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The Impact of Modeling Overall Argumentation with Tree Kernels

机译:用树核建模整体参数的影响

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Several approaches have been proposed to model either the explicit sequential structure of an argumentative text or its implicit hierarchical structure. So far, the adequacy of these models of overall argumentation remains unclear. This paper asks what type of structure is actually important to tackle downstream tasks in computational argumentation. We analyze patterns in the overall argumentation of texts from three corpora. Then, we adapt the idea of positional tree kernels in order to capture sequential and hierarchical argumentative structure together for the first time. In systematic experiments for three text classification tasks, we find strong evidence for the impact of both types of structure. Our results suggest that either of them is necessary while their combination may be beneficial.
机译:已经提出了几种方法来对论证文本的显式顺序结构或其隐式层次结构进行建模。到目前为止,这些总体论证模型的适当性仍不清楚。本文提出了哪种类型的结构实际上对解决计算论证中的下游任务非常重要。我们分析了来自三个语料库的文本整体论证中的模式。然后,我们采用位置树内核的思想,以便第一次同时捕获顺序和层次的论证结构。在针对三种文本分类任务的系统实验中,我们找到了两种类型结构影响的有力证据。我们的结果表明,它们中的任何一个都是必要的,而它们的组合可能是有益的。

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