Dependency-based semantic role labeling using sequence labeling with a structural SVM

  • Authors:
  • Soojong Lim;Changki Lee;Dongyul Ra

  • Affiliations:
  • Automatic Speech Translation & Artificial Intelligence Research Center, Electronics and Telecommunications Research Institute, Daejeon 305-700, Republic of Korea;Department of Computer Science, Kangwon National University, Chunchen 200-701, Republic of Korea;Division of Computer & Telecommunication Engineering, Yonsei University, Wonju 220-710, Republic of Korea

  • Venue:
  • Pattern Recognition Letters
  • Year:
  • 2013

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Abstract

Semantic Role Labeling (SRL) systems aim at determining the semantic role labels of the arguments of the predicates in natural language text. SRL systems can usually be built to work upon the result of constitient analysis (constituent-based), or dependency parsing (dependency-based). SRL systems can use either classification or sequence labeling as the main processing mechanism. In this paper, we show that a dependency-based SRL system using sequence labeling can achieve state-of-the-art performance when a new structural SVM adapted from the Pegasos algorithm is exploited for performing sequence labeling.