Question Directed Graph Attention Network for Numerical Reasoning over Text

09/16/2020 ∙ by Kunlong Chen, et al. ∙ 8

Numerical reasoning over texts, such as addition, subtraction, sorting and counting, is a challenging machine reading comprehension task, since it requires both natural language understanding and arithmetic computation. To address this challenge, we propose a heterogeneous graph representation for the context of the passage and question needed for such reasoning, and design a question directed graph attention network to drive multi-step numerical reasoning over this context graph.

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