In their work, the authors of (Bahdanau et al., 2014) use full-length Rouge Recall on this corpus, since the maximum length of limited-length version of Rouge recall of 75 bytes (intended for DUC data) is already long for Gigaword summaries.
switching network d t : The switching network d t is an MLP with sigmoid output function that outputs a scalar probability of switching between l t and w t , and represents the conditional probability distribution p(z t |(y, z) <t , x).