“…Early work on multi-document summarization was mostly focused on generic summarization (Nayeem et al, 2018), whereas the amount of work for QF-MDS had been very limited (Yao et al, 2017). Due to the lack of training data for the QF-MDS task, most previous works were based on various unsupervised approaches that could only generate extractive summaries (Wang et al, 2008;Wan and Xiao, 2009;Haghighi and Vanderwende, 2009;Wan and Zhang, 2014;Yao et al, 2015;Zhong et al, 2015;Ma et al, 2016;Feigenblat et al, 2017;Roitman et al, 2020).…”