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Title:
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Joint arc-factored parsing of syntactic and semantic dependencies
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Author:
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Lluis Martorell, Xavier; Carreras Pérez, Xavier; Màrquez Villodre, Lluís
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Other authors:
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Universitat Politècnica de Catalunya. Departament de Llenguatges i Sistemes Informàtics; Universitat Politècnica de Catalunya. GPLN - Grup de Processament del Llenguatge Natural |
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Abstract:
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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. |
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Abstract:
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Peer Reviewed |
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Subject(s):
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-Àrees temàtiques de la UPC::Informàtica::Intel·ligència artificial::Llenguatge natural
-Computational linguistics -- Methodology
-Lingüística computacional -- Metodologia |
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Rights:
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Document type:
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Article - Published version
Article |
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