Yeh, Y.-T.Y.-T.YehYUN-NUNG CHEN2021-05-052021-05-052020https://www.scopus.com/inward/record.url?eid=2-s2.0-85084288791&partnerID=40&md5=c175b3d3e3ba63c3e2e8dc4890107a9ehttps://scholars.lib.ntu.edu.tw/handle/123456789/559421Standard accuracy metrics indicate that modern reading comprehension systems have achieved strong performance in many question answering datasets. However, the extent these systems truly understand language remains unknown, and existing systems are not good at distinguishing distractor sentences, which look related but do not actually answer the question. To address this problem, we propose QAInfomax as a regularizer in reading comprehension systems by maximizing mutual information among passages, a question, and its answer. QAInfomax helps regularize the model to not simply learn the superficial correlation for answering questions. The experiments show that our proposed QAInfomax achieves the state-of-the-art performance on the benchmark Adversarial-SQuAD dataset. © 2019 Association for Computational LinguisticsBenchmarking; Existing systems; Mutual information maximization; Mutual informations; Question Answering; Question answering systems; Reading comprehension; Regularizer; State-of-the-art performance; Natural language processing systemsconference paper2-s2.0-85084288791