We introduce the syntactic scaffold, an approach to incorporating syntactic information into semantic tasks. Syntactic scaffolds avoid expensive syntactic processing at runtime, only making use of a treebank during training, through a multitask objective. We improve over strong baselines on PropBank semantics, frame semantics, and coreference resolution, achieving competitive performance on all three tasks.
REF incorporates syntactic information into semantic tasks as another objective, achieving competitive performance on semantic role labeling.
Syntactic Sca ff olds for Semantic Structures