Formal aspects and parsing issues of dependency theory

  • Authors:
  • Vincenzo Lombardo;Leonardo Lesmo

  • Affiliations:
  • Universita' di Torino, Torino-Italy;Universita' di Torino, Torino-Italy

  • Venue:
  • COLING '98 Proceedings of the 17th international conference on Computational linguistics - Volume 2
  • Year:
  • 1998

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Abstract

The paper investigates the problem of providing a formal device for the dependency approach to syntax, and to link it with a parsing model. After reviewing the basic tenets of the paradigm and the few existing mathematical results, we describe a dependency formalism which is able to deal with long-distance dependencies. Finally, we present an Earley-style parser for the formalism and discuss the (polynomial) complexity results.