UnifiedQA-v2: Stronger Generalization via Broader Cross-Format Training

Daniel Khashabi, Yeganeh Kordi, Hannaneh Hajishirzi

Abstract: We present UnifiedQA-v2, a QA model built with the same process as UnifiedQA, except that it utilizes more supervision -- roughly 3x the number of datasets used for UnifiedQA. This generally leads to better in-domain and cross-domain results.