Convolutional neural networks for chemical-disease relation extraction are improved with character-based word embeddings

Dat Quoc Nguyen; Karin Verspoor

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arXiv · 1805.10586

Convolutional neural networks for chemical-disease relation extraction are improved with character-based word embeddings

Dat Quoc Nguyen·Karin Verspoor

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Abstract

We investigate the incorporation of character-based word representations into a standard CNN-based relation extraction model. We experiment with two common neural architectures, CNN and LSTM, to learn word vector representations from character embeddings. Through a task on the BioCreative-V CDR corpus, extracting relationships between chemicals and diseases, we show that models exploiting the character-based word representations improve on models that do not use this information, obtaining state-of-the-art result relative to previous neural approaches.

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Dat Quoc Nguyen, Karin Verspoor. 2018-05-27. Convolutional neural networks for chemical-disease relation extraction are improved with character-based word embeddings. https://arxiv.org/abs/1805.10586

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