Joint Apposition Extraction with Syntactic and Semantic Constraints
Will Radford, James Curran · 2013
Appositions are adjacent NPs used to add information to a discourse. We propose systems exploiting syntactic and semantic constraints to extract appositions from OntoNotes. Our joint log-linear model outperforms the state-of-the-art Favre and Hakkani-Tür (2009) model by ∼10 % on Broadcast News, and achieves 54.3 % F-score on multiple genres. 1