Summary of the paper

Title Corpus-based Semantics of Concession: Where do Expectations Come from?
Authors Livio Robaldo, Eleni Miltsakaki and Alessia Bianchini
Abstract In this paper, we discuss our analysis and resulting new annotations of Penn Discourse Treebank (PDTB) data tagged as Concession. Concession arises whenever one of the two arguments creates an expectation, and the other ones denies it. In Natural Languages, typical discourse connectives conveying Concession are 'but', 'although', 'nevertheless', etc. Extending previous theoretical accounts, our corpus analysis reveals that concessive interpretations are due to different sources of expectation, each giving rise to critical inferences about the relationship of the involved eventualities. We identify four different sources of expectation: Causality, Implication, Correlation, and Implicature. The reliability of these categories is supported by a high inter-annotator agreement score, computed over a sample of one thousand tokens of explicit connectives annotated as Concession in PDTB. Following earlier work of (Hobbs, 1998) and (Davidson, 1967) notion of reification, we extend the logical account of Concession originally proposed in (Robaldo et al., 2008) to provide refined formal descriptions for the first three mentioned sources of expectations in Concessive relations.
Topics Corpus (creation, annotation, etc.), Discourse annotation, representation and processing, Semantics
Full paper Corpus-based Semantics of Concession: Where do Expectations Come from?
Slides Corpus-based Semantics of Concession: Where do Expectations Come from?
Bibtex @InProceedings{ROBALDO10.140,
  author = {Livio Robaldo and Eleni Miltsakaki and Alessia Bianchini},
  title = {Corpus-based Semantics of Concession: Where do Expectations Come from?},
  booktitle = {Proceedings of the Seventh International Conference on Language Resources and Evaluation (LREC'10)},
  year = {2010},
  month = {may},
  date = {19-21},
  address = {Valletta, Malta},
  editor = {Nicoletta Calzolari (Conference Chair) and Khalid Choukri and Bente Maegaard and Joseph Mariani and Jan Odijk and Stelios Piperidis and Mike Rosner and Daniel Tapias},
  publisher = {European Language Resources Association (ELRA)},
  isbn = {2-9517408-6-7},
  language = {english}
 }
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