Question Answering and Question Generation as Dual Tasks

Understand

We study the problem of joint question answering (QA) and question generation (QG) in this paper.

• Our intuition is that QA and QG have intrinsic connections and these two tasks could improve each other.
• On one side, the QA model judges whether the generated question of a QG model is relevant to the answer.
• On the other side, the QG model provides the probability of generating a question given the answer, which is a useful evidence that in turn facilitates QA.