Centering: a framework for modeling the local coherence of discourse
Computational Linguistics
Functional centering: grounding referential coherence in information structure
Computational Linguistics
Information structure and pauses in a corpus of spoken Danish
EACL '06 Proceedings of the Eleventh Conference of the European Chapter of the Association for Computational Linguistics: Posters & Demonstrations
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We report on an investigation of the pragmatic category of topic in Danish dialog and its correlation to surface features of NPs. Using a corpus of 444 utterances, we trained a decision tree system on 16 features. The system achieved near-human performance with success rates of 84--89% and F1-scores of 0.63--0.72 in 10-fold cross validation tests (human performance: 89% and 0.78). The most important features turned out to be preverbal position, definiteness, pronominalisation, and non-subordination. We discovered that NPs in epistemic matrix clauses (e.g. "I think ...") were seldom topics and we suspect that this holds for other interpersonal matrix clauses as well.