“…Domain adaption for natural language processing and computer vision tasks is widely studied (Blitzer et al, 2007;Mansour et al, 2008;Daumé III, 2009;Sandu et al, 2010;Foster et al, 2010;Wang and Cardie, 2013;Sun et al, 2016;Liu et al, 2019bLiu et al, , 2020bGururangan et al, 2020;Winata et al, 2020;Jadon, 2020;Yin, 2020;Liu et al, 2020a,d). However, little has been done to investigate domain adaption for the abstractive summarization task.…”