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arXiv · 2011.03435

Answer Span Correction in Machine Reading Comprehension

Revanth Gangi Reddy·Md Arafat Sultan·Efsun Sarioglu Kayi·Rong Zhang·Vittorio Castelli·Avirup Sil
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Abstract

Answer validation in machine reading comprehension (MRC) consists of verifying an extracted answer against an input context and question pair. Previous work has looked at re-assessing the "answerability" of the question given the extracted answer. Here we address a different problem: the tendency of existing MRC systems to produce partially correct answers when presented with answerable questions. We explore the nature of such errors and propose a post-processing correction method that yields statistically significant performance improvements over state-of-the-art MRC systems in both monolingual and multilingual evaluation.

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Revanth Gangi Reddy, Md Arafat Sultan, Efsun Sarioglu Kayi, Rong Zhang, Vittorio Castelli, Avirup Sil. 2020-11-06. Answer Span Correction in Machine Reading Comprehension. https://arxiv.org/abs/2011.03435

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