A BERT-based question classifier trained on a new 406-class hierarchical taxonomy of science exam questions improves classification MAP by 0.12 over prior methods and boosts downstream QA accuracy by 1.7% P@1.
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Multi-class Hierarchical Question Classification for Multiple Choice Science Exams
A BERT-based question classifier trained on a new 406-class hierarchical taxonomy of science exam questions improves classification MAP by 0.12 over prior methods and boosts downstream QA accuracy by 1.7% P@1.