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We introduce a general framework for several information extraction tasks that share span representations using dynamically constructed span graphs. The graphs are constructed by selecting the most confident entity spans and linking these nodes with confidenceweighted relation types and coreferences. The dynamic span graph allows coreference and relation type confidences to propagate through the graph to iteratively refine the span representations. This is unlike previous multitask frameworksdoi:10.18653/v1/n19-1308 dblp:conf/naacl/LuanWHSOH19 fatcat:fwvmu7ifz5d6fb36xcy5ho6igu