Before revision: For the automatic evaluation of Generative Question Answering (genQA ) systems, it is essential to assess the correctness of the generated answers . However, n-gram similarity metrics, which are widely used to compare generated texts and references, are prone to misjudge fact-based assessments .
After revision: For the automatic evaluation of Generative Question Answering (genQA ) systems, it is essential to assess the correctness of generated answers due to the free-form of the answer .