We describe a data-driven approach to building interpretable discourse structures for appointment scheduling dialogues. We represent discourse structures as headed trees and model them with probabilistic head-driven parsing techniques. We show that dialogue-based features regarding turn-taking and domain specific goals have a large positive impact on performance. Our best model achieves an f-score of 43.2% for labelled discourse relations and 67.9% for unlabelled ones, significantly beating a right-branching baseline that uses the most frequent relations.
Probabilistic Head-Driven Parsing for Discourse Structure
Published 2005 in Conference on Computational Natural Language Learning
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- Publication year
2005
- Venue
Conference on Computational Natural Language Learning
- Publication date
2005-06-01
- Fields of study
Computer Science
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