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GraphERE: Jointly Multiple Event-Event Relation Extraction via Graph-Enhanced Event Embeddings
First, we enrich the event embeddings with event argument and structure features by using static AMR graphs and IE graphs; Then, to jointly extract multiple event relations, we use Node Transformer and construct Task-specific Dynamic Event Graphs for each type of relation.
Prompt-based Graph Model for Joint Liberal Event Extraction and Event Schema Induction
Therefore, the researchers propose Liberal Event Extraction (LEE), which aims to extract events and discover event schemas simultaneously.
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