Now showing items 1-3 of 3

  • A shortest-path method for arc-factored semantic role labeling 

    Lluis Martorell, Xavier; Carreras Pérez, Xavier; Márquez Villodre, Luís (2014)
    Conference lecture
    Restricted access - publisher's policy
    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 ...
  • Learning task-specific bilexical embeddings 

    Madhyastha, Pranava S.; Carreras Pérez, Xavier; Quattoni, Ariadna (2014)
    Conference report
    Open Access
    We present a method that learns bilexical operators over distributional representations of words and leverages supervised data for a linguistic relation. The learning algorithm exploits lowrank bilinear forms and induces ...
  • Spectral regularization for max-margin sequence tagging 

    Quattoni, Ariadna; Balle, Borja; Carreras Pérez, Xavier; Globerson, Amir (2014)
    Conference report
    Open Access
    We frame max-margin learning of latent variable structured prediction models as a convex optimization problem, making use of scoring functions computed by input-output observable operator models. This learning problem can ...