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End-to-end mBERT based Seq2seq Enhanced Dependency Parser with Linguistic Typology knowledge

محلل التبعية المعزز للمبرق المحسن في نهاية المطاف مع المعرفة المعززة بالطباعة اللغوية

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 Publication date 2021
and research's language is English
 Created by Shamra Editor




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We describe the NUIG solution for IWPT 2021 Shared Task of Enhanced Dependency (ED) parsing in multiple languages. For this shared task, we propose and evaluate an End-to-end Seq2seq mBERT-based ED parser which predicts the ED-parse tree of a given input sentence as a relative head-position tag-sequence. Our proposed model is a multitasking neural-network which performs five key tasks simultaneously namely UPOS tagging, UFeat tagging, Lemmatization, Dependency-parsing and ED-parsing. Furthermore we utilise the linguistic typology available in the WALS database to improve the ability of our proposed end-to-end parser to transfer across languages. Results show that our proposed Seq2seq ED-parser performs on par with state-of-the-art ED-parser despite having a much simpler de- sign.

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