Of particular interest, the method based on submodular maximization has three advantages: (1) Many objective functions used for document summarization are known to be monotone and submodular (Lin and Bilmes, 2011;J Kurisinkel et al., 2016); examples of such functions include the coverage function, diversity reward function, and ROUGE.
the method can deliver high performance by using monotone submodular objective functions that are suitable for the given tasks.