@phdthesis{Ritz2013,
  author    = {Ritz, Julia},
  title     = {Discourse-givenness of noun phrases : theoretical and computational models},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-70818},
  school      = {Universit{\"a}t Potsdam},
  year      = {2013},
  abstract  = {This thesis gives formal definitions of discourse-givenness, coreference and reference, and reports on experiments with computational models of discourse-givenness of noun phrases for English and German. Definitions are based on Bach's (1987) work on reference, Kibble and van Deemter's (2000) work on coreference, and Kamp and Reyle's Discourse Representation Theory (1993). For the experiments, the following corpora with coreference annotation were used: MUC-7, OntoNotes and ARRAU for Englisch, and TueBa-D/Z for German. As for classification algorithms, they cover J48 decision trees, the rule based learner Ripper, and linear support vector machines. New features are suggested, representing the noun phrase's specificity as well as its context, which lead to a significant improvement of classification quality.},
  language  = {en}
}