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In this paper we introduce a joint arc-factored
model for syntactic and semantic dependency
parsing. The semantic role labeler predicts
the full syntactic paths that connect predicates
with their arguments. This process is framed
as a linear assignment task, which allows
to control some well-formedness constraints.
For the syntactic part, we define a standard
arc-factored dependency model that predicts
the full syntactic tree. Finally, we employ dual
decomposition techniques to produce consistent
syntactic and predicate-argument structures
while searching over a large space of
syntactic configurations. In experiments on
the CoNLL-2009 English benchmark we observe
very competitive results.
CitationLluis, X.; Carreras, X.; Marquez, L. Joint arc-factored parsing of syntactic and semantic dependencies. "Transactions of the Association for Computational Linguistics (TACL)", Maig 2013, vol. 1, núm. 1, p. 219-230.
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