A Knowledge-Augmented Neural Network Model for Implicit Discourse Relation Classification
Identifying discourse relations that are not overtly marked with discourse connectives remains a challenging problem. The absence of explicit clues indicates a need for the combination of world knowledge and weak contextual clues, which can hardly be learned from a small amount of manually annotated data. In this paper, we address this problem by augmenting the input text with external knowledge and context and by adopting a neural network model that can effectively handle the augmented text. Experiments show that external knowledge did improve the classification accuracy. Contextual information provided no significant gain for implicit discourse relations, but it did for explicit ones.
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General ClassificationImplicit Discourse Relation ClassificationMachine TranslationRelationRelation ClassificationSentiment AnalysisWorld KnowledgeSimilar Papers 제목 키워드 기반
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