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Encoding Explanatory Knowledge for Zero-shot Science Question Answering

2021-05-12 15:42:50
Zili Zhou, Marco Valentino, Donal Landers, Andre Freitas
arXiv_CL
         
Abstract

This paper describes N-XKT (Neural encoding based on eXplanatory Knowledge Transfer), a novel method for the automatic transfer of explanatory knowledge through neural encoding mechanisms. We demonstrate that N-XKT is able to improve accuracy and generalization on science Question Answering (QA). Specifically, by leveraging facts from background explanatory knowledge corpora, the N-XKT model shows a clear improvement on zero-shot QA. Furthermore, we show that N-XKT can be fine-tuned on a target QA dataset, enabling faster convergence and more accurate results. A systematic analysis is conducted to quantitatively analyze the performance of the N-XKT model and the impact of different categories of knowledge on the zero-shot generalization task.

Abstract (translated)

URL

https://arxiv.org/abs/2105.05737

PDF

https://arxiv.org/pdf/2105.05737.pdf

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