Standford Question Answering Dataset (SQuAD) is a reading comprehension dataset by Standford University and has two versions. 斯坦福问答数据集是由斯坦福大学创建的阅读理解数据集，有两个版本。 Know What You Don’t Know- Unanswerable Questions for SQuAD paper.pdf LUKE.pdf SQuAD1.1.p