Constrained Multi-Task Learning for Bridging Resolution

We examine the extent to which supervised bridging resolvers can be improved without employing additional labeled bridging data by proposing a novel constrained multi-task learning framework for bridging resolution, within which we (1) design cross-task consistency constraints to guide the learning process; (2) pretrain the entity coreference model in the multi- task framework on the large amount of publicly available coreference data; and (3) integrate prior knowledge encoded in rule-basedresolvers. Our approach achieves state-of-the-art results on three standard evaluation corpora.