Hierarchical Graph Network for Multi hop Question Answering

EMNLP 2020, pp. 8823-8838, 2020.

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We propose a new approach, Hierarchical Graph Network, for multi-hop question answering

Abstract:

In this paper, we present Hierarchical Graph Network (HGN) for multi-hop question answering. To aggregate clues from scattered texts across multiple paragraphs, a hierarchical graph is created by constructing nodes on different levels of granularity (questions, paragraphs, sentences, entities), the representations of which are initialized...More

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