Opinion graphs for polarity and discourse classification

Authors:
Swapna Somasundaran;Galileo Namata;Lise Getoor;Janyce Wiebe
Affiliations:
Univ. of Pittsburgh, Pittsburgh, PA;Univ. of Maryland, College Park, MD;Univ. of Maryland, College Park, MD;Univ. of Pittsburgh, Pittsburgh, PA
Venue:
TextGraphs-4 Proceedings of the 2009 Workshop on Graph-based Methods for Natural Language Processing
Year:
2009

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Abstract

This work shows how to construct discourse-level opinion graphs to perform a joint interpretation of opinions and discourse relations. Specifically, our opinion graphs enable us to factor in discourse information for polarity classification, and polarity information for discourse-link classification. This inter-dependent framework can be used to augment and improve the performance of local polarity and discourse-link classifiers.