“Modeling the Lifespan of Discourse Entities with Application to Coreference Resolution” by Marie-Catherine de Marneffe, Marta Recasens and Christopher Potts “A discourse typically involves numerous entities, but few are mentioned more than once. Distinguishing those that die out after just one mention (singleton) from those that lead longer lives (coreferent) would dramatically simplify the hypothesis space for coreference resolution models, leading to increased performance. To realize these gains, we build a classifier for predicting the singleton/coreferent distinction…”