• Interestingly, the second best model HRE-QIH has the best accuracy on 'All' questions, even beating CorefNMN by a margin of 20%.
hRE-QIh (and even MN-QIh) is able to answer 'All' questions significantly better than CorefNMN perhaps due to the ability of its dialog-level RNN to summarize information as the dialog progresses.