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A Global Deep Reranking Model for Semantic Role Classification

Haitong YANG, Guangyou ZHOU, Tingting HE, Maoxi LI

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Summary :

The current approaches to semantic role classification usually first define a representation vector for a candidate role and feed the vector into a deep neural network to perform classification. The representation vector contains some lexicalization features like word embeddings, lemmar embeddings. From linguistics, the semantic role frame of a sentence is a joint structure with strong dependencies between arguments which is not considered in current deep SRL systems. Therefore, this paper proposes a global deep reranking model to exploit these strong dependencies. The evaluation experiments on the CoNLL 2009 shared tasks show that our system can outperforms a strong local system significantly that does not consider role dependency relations.

Publication
IEICE TRANSACTIONS on Information Vol.E104-D No.7 pp.1063-1066
Publication Date
2021/07/01
Publicized
2021/04/15
Online ISSN
1745-1361
DOI
10.1587/transinf.2020EDL8164
Type of Manuscript
LETTER
Category
Natural Language Processing

Authors

Haitong YANG
  Central China Normal University
Guangyou ZHOU
  Central China Normal University
Tingting HE
  Central China Normal University
Maoxi LI
  Jiangxi Normal University

Keyword