Joint Extraction of Entities and Relations Based on a Novel Decomposition Strategy

Understand

Joint extraction of entities and relations aims to detect entity pairs along with their relations using a single model.

• Prior work typically solves this task in the extract-then-classify or unified labeling manner.
• However, these methods either suffer from the redundant entity pairs, or ignore the important inner structure in the process of extracting entities and relations.
• To address these limitations, in this paper, we first decompose the joint extraction task into two interrelated subtasks, namely HE extraction and TER extraction.