Exploiting naive vs expert discourse annotations: an experiment using lexical cohesion to predict elaboration/entity-elaboration confusions

Authors:
Clémentine Adam;Marianne Vergez-Couret
Affiliations:
CLLE & University of Toulouse;LPL, Aix-Marseille University and Hong-Kong Polytechnic University
Venue:
LAW VI '12 Proceedings of the Sixth Linguistic Annotation Workshop
Year:
2012

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Abstract

This paper brings a contribution to the field of discourse annotation of corpora. Using ANNODIS, a french corpus annotated with discourse relations by naive and expert annotators, we focus on two of them, Elaboration and Entity-Elaboration. These two very frequent relations are (a) often confused by naive annotators (b) difficult to detect automatically as their signalling is poorly studied. We propose to use lexical cohesion to differentiate between them, and show that Elaboration is more cohesive than Entity-Elaboration. We then integrate lexical cohesion cues in a classification experiment, obtaining highly satisfying results.