Strictly Breadth-First AMR Parsing. (arXiv:2211.03922v1 [cs.CL])

AMR parsing is the task that maps a sentence to an AMR semantic graph
automatically. We focus on the breadth-first strategy of this task, which was
proposed recently and achieved better performance than other strategies.
However, current models under this strategy only \emph{encourage} the model to
produce the AMR graph in breadth-first order, but \emph{cannot guarantee} this.
To solve this problem, we propose a new architecture that \emph{guarantees}
that the parsing will strictly follow the breadth-first order. In each parsing …

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