For multi-document summarization, the proposed UnifiedRank approach outperforms all the three graph-based baselines over all three metrics on the DUC2001 dataset, and it outperforms the three baselines over ROUGE-1 and ROUGE-W on the DUC2002 dataset.
unifiedRank can significantly outperform BasicRank and TwoStageRank over all three metrics on the DuC2001 dataset (t-test, p-value<0.05).