Graph-Based Decoding for Event Sequencing and Coreference Resolution [article]

Zhengzhong Liu, Teruko Mitamura, Eduard Hovy
2018 arXiv   pre-print
Events in text documents are interrelated in complex ways. In this paper, we study two types of relation: Event Coreference and Event Sequencing. We show that the popular tree-like decoding structure for automated Event Coreference is not suitable for Event Sequencing. To this end, we propose a graph-based decoding algorithm that is applicable to both tasks. The new decoding algorithm supports flexible feature sets for both tasks. Empirically, our event coreference system has achieved
more » ... he-art performance on the TAC-KBP 2015 event coreference task and our event sequencing system beats a strong temporal-based, oracle-informed baseline. We discuss the challenges of studying these event relations.
arXiv:1806.05099v1 fatcat:xkdzw3keeze3vglf6bfsuleh2m