Cache Transition Systems for Graph Parsing

Autor: Daniel Gildea, Giorgio Satta, Xiaochang Peng
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: Computational Linguistics, Vol 44, Iss 1, Pp 85-118 (2018)
Druh dokumentu: article
ISSN: 1530-9312
DOI: 10.1162/COLI_a_00308
Popis: Motivated by the task of semantic parsing, we describe a transition system that generalizes standard transition-based dependency parsing techniques to generate a graph rather than a tree. Our system includes a cache with fixed size m, and we characterize the relationship between the parameter m and the class of graphs that can be produced through the graph-theoretic concept of tree decomposition. We find empirically that small cache sizes cover a high percentage of sentences in existing semantic corpora.
Databáze: Directory of Open Access Journals
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