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We introduce a Semantic Role Labeling (SRL) parser that finds semantic roles for a predicate together with the syntactic paths linking predicates and arguments. Our main contribution is to formulate SRL in terms of shortest-path inference, on the assumption that the SRL model is restricted to arc-factored features of the syntactic paths behind semantic roles. Overall, our method for SRL is a novel way to exploit larger variability in the syntactic realizations
of predicate-argument relations, moving away from pipeline architectures.
Experiments show that our approach improves the robustness of the predictions, producing arc-factored models that perform closely to methods using unrestricted features from the syntax
CitationLluis, X.; Carreras, X.; Márquez , L. A shortest-path method for arc-factored semantic role labeling. A: Conference on Empirical Methods in Natural Language Processing. "Proceedings of the 2014 Conference on Empirical Methods In Natural Language Processing". Doha: 2014, p. 430-435.
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