Generic Axiomatization of Families of Noncrossing Graphs in Dependency Parsing
Anssi Yli-Jyrä, Carlos Gómez‐Rodríguez · 2017
We present a simple encoding for unlabeled noncrossing graphs and show how its latent counterpart helps us to represent several families of directed and undirected graphs used in syntactic and semantic parsing of natural language as contextfree languages.The families are separated purely on the basis of forbidden patterns in latent encoding, eliminating the need to differentiate the families of non-crossing graphs in inference algorithms: one algorithm works for all when the search space can be controlled in parser input.