UConcordia: CLaC negation focus detection at *Sem 2012

Authors:
Sabine Rosenberg;Sabine Bergler
Affiliations:
CLaC Lab, Concordia University de Maisonneuve Blvd West, Montréal, QC, Canada;CLaC Lab, Concordia University de Maisonneuve Blvd West, Montréal, QC, Canada
Venue:
SemEval '12 Proceedings of the First Joint Conference on Lexical and Computational Semantics - Volume 1: Proceedings of the main conference and the shared task, and Volume 2: Proceedings of the Sixth International Workshop on Semantic Evaluation
Year:
2012

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Abstract

Simply detecting negation cues is not sufficient to determine the semantics of negation, scope and focus must be taken into account. While scope detection has recently seen repeated attention, the linguistic notion of focus is only now being introduced into computational work. The *Sem2012 Shared Task is pioneering this effort by introducing a suitable dataset and annotation guidelines. CLaC's NegFocus system is a solid baseline approach to the task.