Syntactic methods rely on textual features extracted from varied syntactic structures like coreference annotations, dependency parsing trees, and discourse relations, to connect sentences in documents.


Columbia University

- Syntactic methods
- Multi-hop paths between entities
- Graph-structured neural networks

Methods for handling more complicated context in RE

Syntactic methods for RE from complicated context 

Inter-sentence entity graphs can use multi-hop paths between entities for inferring the correct relations. 


Multi-hop paths between entities for RE from complicated context


Graph-structured neural networks build a graph over the sentences or entities in a document and use graph neural network layers to model cross-sentence dependencies for relation extraction. Propagating information across this graph structure gives the model memory and reasoning abilities that single-sentence models lack.

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