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Negation typology and general representation models for cross-lingual zero-shot negation scope resolution in Russian, French, and Spanish

机译:俄罗斯,法语和西班牙语交叉零击否定范围分辨率的否定类型和一般代表模型

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Negation is a linguistic universal that poses difficulties for cognitive and computational processing. Despite many advances in text analytics, negation resolution remains an acute and continuously researched question in Natural Language Processing. Reliable negation parsing affects results in biomedical text mining, sentiment analysis, machine translation, and many other fields. The availability of multilingual pre-trained general representation models makes it possible to experiment with negation detection in languages that lack annotated data. In this work we test the performance of two state-of-the-art contextual representation models, Multilingual BERT and XLM-RoBERTa. We resolve negation scope by conducting zero-shot transfer between English, Spanish, French, and Russian. Our best result amounts to a token-level F1-score of 86.86% from Spanish to Russian. We correlate these results with a linguistic negation typology and lexical capacity of the models.
机译:否定是一种语言普遍,对认知和计算处理构成困难。 尽管文本分析有许多进展,但否定决议仍然是在自然语言处理中急剧和不断研究的问题。 可靠的否定解析影响生物医学文本挖掘,情感分析,机器翻译以及许多其他领域的结果。 多语言预先训练的一般表示模型的可用性使得可以在缺乏注释数据的语言中进行否定检测。 在这项工作中,我们测试了两个最先进的上下文表示模型,多语言BERT和XLM-ROBERTA的性能。 我们通过在英语,西班牙语,法国和俄语之间进行零射击传输来解决否定范围。 我们的最佳效果达到了西班牙语到俄语的令牌级F1分数为86.86%。 我们将这些结果与模型的语言否定类型和词汇容量相关联。

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