Papers › Revisiting neural relation classification in clinical notes with external information

Revisiting neural relation classification in clinical notes with external information

1 Oct 2018WS 2018 10archive 2025-07-28

Simon {\v{S}}uster, Madhumita Sushil, Walter Daelemans

Recently, segment convolutional neural networks have been proposed for end-to-end relation extraction in the clinical domain, achieving results comparable to or outperforming the approaches with heavy manual feature engineering. In this paper, we analyze the errors made by the neural classifier based on confusion matrices, and then investigate three simple extensions to overcome its limitations. We find that including ontological association between drugs and problems, and data-induced association between medical concepts does not reliably improve the performance, but that large gains are obtained by the incorporation of semantic classes to capture relation triggers.

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ClassificationFeature EngineeringGeneral ClassificationNatural Language InferenceRelation ClassificationRelation ExtractionText Categorization

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