Learning log-linear models on constraint-based grammars for disambiguation

  • Authors:
  • Stefan Riezler

  • Affiliations:
  • Univ. Stuttgart, Stuttgart

  • Venue:
  • Learning language in logic
  • Year:
  • 2001

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Abstract

We discuss the probabilistic modeling of constraint-based grammars by log-linear distributions and present a novel technique for statistical inference of the parameters and properties of such models from unannotated training data. We report on an experiment with a log-linear grammar model which employs sophisticated linguistically motivated features of parses as properties of the probability model. We report the results of statistical parameter estimation and empirical evaluation of this model on a small scale. These show that log-linear models on the parses of constraint-based grammars are useful for accurate disambiguation.