A neural network parser that handles sparse data

  • Authors:
  • James Henderson

  • Affiliations:
  • Dept of Computer Science, University of Geneva, Genève, Switzerland

  • Venue:
  • New developments in parsing technology
  • Year:
  • 2004

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Abstract

Simple Synchrony Networks (SSNs) have previously been shown to be a viable alternative method for syntactic parsing. Here we use an SSN to estimate the parameters of a probabilistic parsing model, and compare this parser's performance against a standard statistical parsing method, a Probabilistic Context Free Grammar. We focus these experiments on demonstrating one of the main advantages of SSNs, handling sparse data. We use smaller datasets than are typically used with statistical methods, resulting in the PCFG finding parses for only half of the test sentences, while the SSN parser finds parses for all sentences. Even on the PCFG's parsed half, the SSN parser performs better than the PCFG.