ViMRC - VLSP 2021: Improving retrospective reader for Vietnamese machine reading comprehension

In recent years, there are multiple systems (e.g search engines and dialogue systems) that require machines to be able to read and understand human text to perform several tasks in an application. Machine Reading Comprehension (MRC) has posed a challenge to the Natural Language Processing (NLP) community in teaching machines to understand the meaning of human text in order to answer questions provided.